diff --git a/src/main/scala/gitbucket/core/controller/DashboardController.scala b/src/main/scala/gitbucket/core/controller/DashboardController.scala
index 3dc8d1a..a67e294 100644
--- a/src/main/scala/gitbucket/core/controller/DashboardController.scala
+++ b/src/main/scala/gitbucket/core/controller/DashboardController.scala
@@ -9,6 +9,7 @@
 class DashboardController
     extends DashboardControllerBase
     with IssuesService
+    with MergeService
     with PullRequestService
     with RepositoryService
     with AccountService
diff --git a/src/main/scala/gitbucket/core/controller/IssuesController.scala b/src/main/scala/gitbucket/core/controller/IssuesController.scala
index 2c2fa68..efc0acb 100644
--- a/src/main/scala/gitbucket/core/controller/IssuesController.scala
+++ b/src/main/scala/gitbucket/core/controller/IssuesController.scala
@@ -24,6 +24,7 @@
     with ReadableUsersAuthenticator
     with ReferrerAuthenticator
     with WritableUsersAuthenticator
+    with MergeService
     with PullRequestService
     with WebHookIssueCommentService
     with WebHookPullRequestReviewCommentService
diff --git a/src/main/scala/gitbucket/core/controller/PullRequestsController.scala b/src/main/scala/gitbucket/core/controller/PullRequestsController.scala
index 022acf4..8509115 100644
--- a/src/main/scala/gitbucket/core/controller/PullRequestsController.scala
+++ b/src/main/scala/gitbucket/core/controller/PullRequestsController.scala
@@ -534,15 +534,15 @@
         )
 
         createPullRequest(
-          originUserName = repository.owner,
-          originRepositoryName = repository.name,
+          originRepository = repository,
           issueId = issueId,
           originBranch = form.targetBranch,
           requestUserName = form.requestUserName,
           requestRepositoryName = form.requestRepositoryName,
           requestBranch = form.requestBranch,
           commitIdFrom = form.commitIdFrom,
-          commitIdTo = form.commitIdTo
+          commitIdTo = form.commitIdTo,
+          loginAccount = context.loginAccount.get
         )
 
         // insert labels
@@ -557,29 +557,6 @@
           }
         }
 
-        // fetch requested branch
-        fetchAsPullRequest(owner, name, form.requestUserName, form.requestRepositoryName, form.requestBranch, issueId)
-
-        // record activity
-        recordPullRequestActivity(owner, name, loginUserName, issueId, form.title)
-
-        // call web hook
-        callPullRequestWebHook("opened", repository, issueId, context.loginAccount.get)
-
-        getIssue(owner, name, issueId.toString) foreach { issue =>
-          // extract references and create refer comment
-          createReferComment(
-            owner,
-            name,
-            issue,
-            form.title + " " + form.content.getOrElse(""),
-            context.loginAccount.get
-          )
-
-          // call hooks
-          PluginRegistry().getPullRequestHooks.foreach(_.created(issue, repository))
-        }
-
         redirect(s"/${owner}/${name}/pull/${issueId}")
     }
   })
diff --git a/src/main/scala/gitbucket/core/controller/RepositoryViewerController.scala b/src/main/scala/gitbucket/core/controller/RepositoryViewerController.scala
index c842b22..5fca3c7 100644
--- a/src/main/scala/gitbucket/core/controller/RepositoryViewerController.scala
+++ b/src/main/scala/gitbucket/core/controller/RepositoryViewerController.scala
@@ -50,6 +50,7 @@
     with ReadableUsersAuthenticator
     with ReferrerAuthenticator
     with WritableUsersAuthenticator
+    with MergeService
     with PullRequestService
     with CommitStatusService
     with WebHookPullRequestService
diff --git a/src/main/scala/gitbucket/core/controller/api/ApiPullRequestControllerBase.scala b/src/main/scala/gitbucket/core/controller/api/ApiPullRequestControllerBase.scala
index 13cc75d..14aaccb 100644
--- a/src/main/scala/gitbucket/core/controller/api/ApiPullRequestControllerBase.scala
+++ b/src/main/scala/gitbucket/core/controller/api/ApiPullRequestControllerBase.scala
@@ -106,15 +106,15 @@
                     )
 
                     createPullRequest(
-                      originUserName = repository.owner,
-                      originRepositoryName = repository.name,
+                      originRepository = repository,
                       issueId = issueId,
                       originBranch = createPullReq.base,
                       requestUserName = reqOwner,
                       requestRepositoryName = repository.name,
                       requestBranch = reqBranch,
                       commitIdFrom = commitIdFrom.getName,
-                      commitIdTo = commitIdTo.getName
+                      commitIdTo = commitIdTo.getName,
+                      loginAccount = context.loginAccount.get
                     )
                     getApiPullRequest(repository, issueId).map(JsonFormat(_))
                   case _ =>
@@ -133,15 +133,15 @@
                   case (Some(commitIdFrom), Some(commitIdTo)) =>
                     changeIssueToPullRequest(repository.owner, repository.name, createPullReqAlt.issue)
                     createPullRequest(
-                      originUserName = repository.owner,
-                      originRepositoryName = repository.name,
+                      originRepository = repository,
                       issueId = createPullReqAlt.issue,
                       originBranch = createPullReqAlt.base,
                       requestUserName = reqOwner,
                       requestRepositoryName = repository.name,
                       requestBranch = reqBranch,
                       commitIdFrom = commitIdFrom.getName,
-                      commitIdTo = commitIdTo.getName
+                      commitIdTo = commitIdTo.getName,
+                      loginAccount = context.loginAccount.get
                     )
                     getApiPullRequest(repository, createPullReqAlt.issue).map(JsonFormat(_))
                   case _ =>
diff --git a/src/main/scala/gitbucket/core/service/PullRequestService.scala b/src/main/scala/gitbucket/core/service/PullRequestService.scala
index 185955c..2a3cd80 100644
--- a/src/main/scala/gitbucket/core/service/PullRequestService.scala
+++ b/src/main/scala/gitbucket/core/service/PullRequestService.scala
@@ -6,6 +6,8 @@
 import difflib.{Delta, DiffUtils}
 import gitbucket.core.service.RepositoryService.RepositoryInfo
 import gitbucket.core.api.JsonFormat
+import gitbucket.core.controller.Context
+import gitbucket.core.plugin.PluginRegistry
 import gitbucket.core.util.SyntaxSugars._
 import gitbucket.core.util.Directory._
 import gitbucket.core.util.Implicits._
@@ -20,7 +22,13 @@
 import scala.collection.JavaConverters._
 
 trait PullRequestService {
-  self: IssuesService with CommitsService with WebHookService with WebHookPullRequestService with RepositoryService =>
+  self: IssuesService
+    with CommitsService
+    with WebHookService
+    with WebHookPullRequestService
+    with RepositoryService
+    with MergeService
+    with ActivityService =>
   import PullRequestService._
 
   def getPullRequest(owner: String, repository: String, issueId: Int)(
@@ -81,27 +89,66 @@
 //      .map { x => PullRequestCount(x._1, x._2) }
 
   def createPullRequest(
-    originUserName: String,
-    originRepositoryName: String,
+    originRepository: RepositoryInfo,
     issueId: Int,
     originBranch: String,
     requestUserName: String,
     requestRepositoryName: String,
     requestBranch: String,
     commitIdFrom: String,
-    commitIdTo: String
-  )(implicit s: Session): Unit =
-    PullRequests insert PullRequest(
-      originUserName,
-      originRepositoryName,
-      issueId,
-      originBranch,
-      requestUserName,
-      requestRepositoryName,
-      requestBranch,
-      commitIdFrom,
-      commitIdTo
-    )
+    commitIdTo: String,
+    loginAccount: Account
+  )(implicit s: Session, context: Context): Unit = {
+    getIssue(originRepository.owner, originRepository.name, issueId.toString).foreach { baseIssue =>
+      PullRequests insert PullRequest(
+        originRepository.owner,
+        originRepository.name,
+        issueId,
+        originBranch,
+        requestUserName,
+        requestRepositoryName,
+        requestBranch,
+        commitIdFrom,
+        commitIdTo
+      )
+
+      // fetch requested branch
+      fetchAsPullRequest(
+        originRepository.owner,
+        originRepository.name,
+        requestUserName,
+        requestRepositoryName,
+        requestBranch,
+        issueId
+      )
+
+      // record activity
+      recordPullRequestActivity(
+        originRepository.owner,
+        originRepository.name,
+        loginAccount.userName,
+        issueId,
+        baseIssue.title
+      )
+
+      // call web hook
+      callPullRequestWebHook("opened", originRepository, issueId, loginAccount)
+
+      getIssue(originRepository.owner, originRepository.name, issueId.toString) foreach { issue =>
+        // extract references and create refer comment
+        createReferComment(
+          originRepository.owner,
+          originRepository.name,
+          issue,
+          baseIssue.title + " " + baseIssue.content,
+          loginAccount
+        )
+
+        // call hooks
+        PluginRegistry().getPullRequestHooks.foreach(_.created(issue, originRepository))
+      }
+    }
+  }
 
   def getPullRequestsByRequest(userName: String, repositoryName: String, branch: String, closed: Option[Boolean])(
     implicit s: Session
diff --git a/src/main/scala/gitbucket/core/servlet/GitRepositoryServlet.scala b/src/main/scala/gitbucket/core/servlet/GitRepositoryServlet.scala
index 46dbcc4..68df7da 100644
--- a/src/main/scala/gitbucket/core/servlet/GitRepositoryServlet.scala
+++ b/src/main/scala/gitbucket/core/servlet/GitRepositoryServlet.scala
@@ -215,6 +215,7 @@
     with AccountService
     with IssuesService
     with ActivityService
+    with MergeService
     with PullRequestService
     with WebHookService
     with LabelsService
diff --git a/src/test/scala/gitbucket/core/service/PullRequestServiceSpec.scala b/src/test/scala/gitbucket/core/service/PullRequestServiceSpec.scala
index bba472c..2f1db6d 100644
--- a/src/test/scala/gitbucket/core/service/PullRequestServiceSpec.scala
+++ b/src/test/scala/gitbucket/core/service/PullRequestServiceSpec.scala
@@ -6,6 +6,7 @@
 class PullRequestServiceSpec
     extends FunSpec
     with ServiceSpecBase
+    with MergeService
     with PullRequestService
     with IssuesService
     with AccountService
diff --git a/src/test/scala/gitbucket/core/service/ServiceSpecBase.scala b/src/test/scala/gitbucket/core/service/ServiceSpecBase.scala
index 86b3f26..4842d66 100644
--- a/src/test/scala/gitbucket/core/service/ServiceSpecBase.scala
+++ b/src/test/scala/gitbucket/core/service/ServiceSpecBase.scala
@@ -10,12 +10,12 @@
 import gitbucket.core.model.Profile._
 import gitbucket.core.model.Profile.profile._
 import gitbucket.core.model.Profile.profile.blockingApi._
-
 import org.apache.commons.io.FileUtils
-
 import java.sql.DriverManager
 import java.io.File
 
+import gitbucket.core.controller.Context
+
 import scala.util.Random
 
 trait ServiceSpecBase {
@@ -44,8 +44,8 @@
   def user(name: String)(implicit s: Session): Account = AccountService.getAccountByUserName(name).get
 
   lazy val dummyService = new RepositoryService with AccountService with ActivityService with IssuesService
-  with PullRequestService with CommitsService with CommitStatusService with LabelsService with MilestonesService
-  with PrioritiesService with WebHookService with WebHookPullRequestService
+  with MergeService with PullRequestService with CommitsService with CommitStatusService with LabelsService
+  with MilestonesService with PrioritiesService with WebHookService with WebHookPullRequestService
   with WebHookPullRequestReviewCommentService {}
 
   def generateNewUserWithDBRepository(userName: String, repositoryName: String)(implicit s: Session): Account = {
@@ -76,16 +76,18 @@
     val Array(baseUserName, baseRepositoryName, baesBranch) = base.split("/")
     val Array(requestUserName, requestRepositoryName, requestBranch) = request.split("/")
     val issueId = generateNewIssue(baseUserName, baseRepositoryName, Option(loginUser).getOrElse(requestUserName))
+    val baseRepository = dummyService.getRepository(baseUserName, baseRepositoryName)
+    val loginAccount = dummyService.getAccountByUserName(loginUser)
     dummyService.createPullRequest(
-      originUserName = baseUserName,
-      originRepositoryName = baseRepositoryName,
+      originRepository = baseRepository.get,
       issueId = issueId,
       originBranch = baesBranch,
       requestUserName = requestUserName,
       requestRepositoryName = requestRepositoryName,
       requestBranch = requestBranch,
       commitIdFrom = baesBranch,
-      commitIdTo = requestBranch
+      commitIdTo = requestBranch,
+      loginAccount = loginAccount.get
     )
     dummyService.getPullRequest(baseUserName, baseRepositoryName, issueId).get
   }
diff --git a/src/test/scala/gitbucket/core/service/WebHookServiceSpec.scala b/src/test/scala/gitbucket/core/service/WebHookServiceSpec.scala
index 957aa93..92a4aa3 100644
--- a/src/test/scala/gitbucket/core/service/WebHookServiceSpec.scala
+++ b/src/test/scala/gitbucket/core/service/WebHookServiceSpec.scala
@@ -6,8 +6,8 @@
 
 class WebHookServiceSpec extends FunSuite with ServiceSpecBase {
   lazy val service = new WebHookPullRequestService with AccountService with ActivityService with RepositoryService
-  with PullRequestService with IssuesService with CommitsService with LabelsService with MilestonesService
-  with PrioritiesService with WebHookPullRequestReviewCommentService
+  with MergeService with PullRequestService with IssuesService with CommitsService with LabelsService
+  with MilestonesService with PrioritiesService with WebHookPullRequestReviewCommentService
 
   test("WebHookPullRequestService.getPullRequestsByRequestForWebhook") {
     withTestDB { implicit session =>