diff --git a/src/main/resources/update/1_5.sql b/src/main/resources/update/1_5.sql
index 21a8337..35131fc 100644
--- a/src/main/resources/update/1_5.sql
+++ b/src/main/resources/update/1_5.sql
@@ -18,3 +18,5 @@
 ALTER TABLE PULL_REQUEST ADD CONSTRAINT IDX_PULL_REQUEST_PK PRIMARY KEY (USER_NAME, REPOSITORY_NAME, ISSUE_ID);
 ALTER TABLE PULL_REQUEST ADD CONSTRAINT IDX_PULL_REQUEST_FK0 FOREIGN KEY (USER_NAME, REPOSITORY_NAME, ISSUE_ID) REFERENCES ISSUE (USER_NAME, REPOSITORY_NAME, ISSUE_ID);
 ALTER TABLE PULL_REQUEST ADD CONSTRAINT IDX_PULL_REQUEST_FK1 FOREIGN KEY (REQUEST_USER_NAME, REQUEST_REPOSITORY_NAME) REFERENCES REPOSITORY (USER_NAME, REPOSITORY_NAME);
+
+ALTER TABLE ISSUE ADD COLUMN PULL_REQUEST BOOLEAN NOT NULL DEFAULT FALSE;
diff --git a/src/main/scala/app/PullRequestsController.scala b/src/main/scala/app/PullRequestsController.scala
index 26028ed..f221f83 100644
--- a/src/main/scala/app/PullRequestsController.scala
+++ b/src/main/scala/app/PullRequestsController.scala
@@ -262,23 +262,25 @@
     val loginUserName = context.loginAccount.get.userName
 
     val issueId = createIssue(
-      repository.owner,
-      repository.name,
-      loginUserName,
-      form.title,
-      form.content,
-      None, None)
+      owner            = repository.owner,
+      repository       = repository.name,
+      loginUser        = loginUserName,
+      title            = form.title,
+      content          = form.content,
+      assignedUserName = None,
+      milestoneId      = None,
+      isPullRequest    = true)
 
     createPullRequest(
-      repository.owner,
-      repository.name,
-      issueId,
-      form.targetBranch,
-      form.requestUserName,
-      repository.name,
-      form.requestBranch,
-      form.commitIdFrom,
-      form.commitIdTo)
+      originUserName        = repository.owner,
+      originRepositoryName  = repository.name,
+      issueId               = issueId,
+      originBranch          = form.targetBranch,
+      requestUserName       = form.requestUserName,
+      requestRepositoryName = repository.name,
+      requestBranch         = form.requestBranch,
+      commitIdFrom          = form.commitIdFrom,
+      commitIdTo            = form.commitIdTo)
 
     // fetch requested branch
     JGitUtil.withGit(getRepositoryDir(repository.owner, repository.name)){ git =>
diff --git a/src/main/scala/model/Issue.scala b/src/main/scala/model/Issue.scala
index 769b059..d5ce8a3 100644
--- a/src/main/scala/model/Issue.scala
+++ b/src/main/scala/model/Issue.scala
@@ -20,7 +20,8 @@
   def closed = column[Boolean]("CLOSED")
   def registeredDate = column[java.util.Date]("REGISTERED_DATE")
   def updatedDate = column[java.util.Date]("UPDATED_DATE")
-  def * = userName ~ repositoryName ~ issueId ~ openedUserName ~ milestoneId.? ~ assignedUserName.? ~ title ~ content.? ~ closed ~ registeredDate ~ updatedDate <> (Issue, Issue.unapply _)
+  def pullRequest = column[Boolean]("PULL_REQUEST")
+  def * = userName ~ repositoryName ~ issueId ~ openedUserName ~ milestoneId.? ~ assignedUserName.? ~ title ~ content.? ~ closed ~ registeredDate ~ updatedDate ~ pullRequest <> (Issue, Issue.unapply _)
 
   def byPrimaryKey(owner: String, repository: String, issueId: Int) = byIssue(owner, repository, issueId)
 }
@@ -36,4 +37,5 @@
     content: Option[String],
     closed: Boolean,
     registeredDate: java.util.Date,
-    updatedDate: java.util.Date)
\ No newline at end of file
+    updatedDate: java.util.Date,
+    isPullRequest: Boolean)
\ No newline at end of file
diff --git a/src/main/scala/service/IssuesService.scala b/src/main/scala/service/IssuesService.scala
index 543c795..3e44c6c 100644
--- a/src/main/scala/service/IssuesService.scala
+++ b/src/main/scala/service/IssuesService.scala
@@ -179,7 +179,7 @@
     }
 
   def createIssue(owner: String, repository: String, loginUser: String, title: String, content: Option[String],
-                  assignedUserName: Option[String], milestoneId: Option[Int]) =
+                  assignedUserName: Option[String], milestoneId: Option[Int], isPullRequest: Boolean = false) =
     // next id number
     sql"SELECT ISSUE_ID + 1 FROM ISSUE_ID WHERE USER_NAME = $owner AND REPOSITORY_NAME = $repository FOR UPDATE".as[Int]
         .firstOption.filter { id =>
@@ -194,7 +194,8 @@
           content,
           false,
           currentDate,
-          currentDate)
+          currentDate,
+          isPullRequest)
 
       // increment issue id
       IssueId