diff --git a/src/main/scala/gitbucket/core/api/ApiIssue.scala b/src/main/scala/gitbucket/core/api/ApiIssue.scala
index b03cf48..5688ae0 100644
--- a/src/main/scala/gitbucket/core/api/ApiIssue.scala
+++ b/src/main/scala/gitbucket/core/api/ApiIssue.scala
@@ -18,6 +18,7 @@
   updated_at: Date,
   body: String
 )(repositoryName: RepositoryName, isPullRequest: Boolean) {
+  val id = 0 // dummy id
   val comments_url = ApiPath(s"/api/v3/repos/${repositoryName.fullName}/issues/${number}/comments")
   val html_url = ApiPath(s"/${repositoryName.fullName}/${if (isPullRequest) { "pull" } else { "issues" }}/${number}")
   val pull_request = if (isPullRequest) {
diff --git a/src/main/scala/gitbucket/core/api/ApiPullRequest.scala b/src/main/scala/gitbucket/core/api/ApiPullRequest.scala
index 50d20b3..c094db4 100644
--- a/src/main/scala/gitbucket/core/api/ApiPullRequest.scala
+++ b/src/main/scala/gitbucket/core/api/ApiPullRequest.scala
@@ -23,6 +23,7 @@
   labels: List[ApiLabel],
   assignee: Option[ApiUser]
 ) {
+  val id = 0 // dummy id
   val html_url = ApiPath(s"${base.repo.html_url.path}/pull/${number}")
   //val diff_url            = ApiPath(s"${base.repo.html_url.path}/pull/${number}.diff")
   //val patch_url           = ApiPath(s"${base.repo.html_url.path}/pull/${number}.patch")
diff --git a/src/main/scala/gitbucket/core/api/ApiRepository.scala b/src/main/scala/gitbucket/core/api/ApiRepository.scala
index 549e8e7..8fe2c8a 100644
--- a/src/main/scala/gitbucket/core/api/ApiRepository.scala
+++ b/src/main/scala/gitbucket/core/api/ApiRepository.scala
@@ -14,6 +14,7 @@
   default_branch: String,
   owner: ApiUser
 )(urlIsHtmlUrl: Boolean) {
+  val id = 0 // dummy id
   val forks_count = forks
   val watchers_count = watchers
   val url = if (urlIsHtmlUrl) {
diff --git a/src/main/scala/gitbucket/core/api/ApiUser.scala b/src/main/scala/gitbucket/core/api/ApiUser.scala
index 5d74e40..9a65966 100644
--- a/src/main/scala/gitbucket/core/api/ApiUser.scala
+++ b/src/main/scala/gitbucket/core/api/ApiUser.scala
@@ -5,6 +5,7 @@
 import java.util.Date
 
 case class ApiUser(login: String, email: String, `type`: String, site_admin: Boolean, created_at: Date) {
+  val id = 0 // dummy id
   val url = ApiPath(s"/api/v3/users/${login}")
   val html_url = ApiPath(s"/${login}")
   val avatar_url = ApiPath(s"/${login}/_avatar")
diff --git a/src/test/scala/gitbucket/core/api/JsonFormatSpec.scala b/src/test/scala/gitbucket/core/api/JsonFormatSpec.scala
index f5b0b80..733d53b 100644
--- a/src/test/scala/gitbucket/core/api/JsonFormatSpec.scala
+++ b/src/test/scala/gitbucket/core/api/JsonFormatSpec.scala
@@ -30,6 +30,7 @@
     "email":"octocat@example.com",
     "type":"User",
     "site_admin":false,
+    "id": 0,
     "created_at":"2011-04-14T16:00:49Z",
     "url":"http://gitbucket.exmple.com/api/v3/users/octocat",
     "html_url":"http://gitbucket.exmple.com/octocat",
@@ -50,6 +51,7 @@
     "name" : "Hello-World",
     "full_name" : "octocat/Hello-World",
     "description" : "This your first repo!",
+    "id": 0,
     "watchers" : 0,
     "forks" : 0,
     "private" : false,
@@ -228,6 +230,7 @@
     "title": "Found a bug",
     "body": "I'm having a problem with this.",
     "user": $apiUserJson,
+    "id": 0,
     "labels": [$apiLabelJson],
     "comments_url": "${context.baseUrl}/api/v3/repos/octocat/Hello-World/issues/1347/comments",
     "html_url": "${context.baseUrl}/octocat/Hello-World/issues/1347",
@@ -251,6 +254,7 @@
     "title": "Found a bug",
     "body": "I'm having a problem with this.",
     "user": $apiUserJson,
+    "id": 0,
     "labels": [$apiLabelJson],
     "comments_url": "${context.baseUrl}/api/v3/repos/octocat/Hello-World/issues/1347/comments",
     "html_url": "${context.baseUrl}/octocat/Hello-World/pull/1347",
@@ -285,6 +289,7 @@
   val apiPullRequestJson = s"""{
     "number": 1347,
     "state" : "open",
+    "id": 0,
     "updated_at": "2011-04-14T16:00:49Z",
     "created_at": "2011-04-14T16:00:49Z",
   //  "closed_at": "2011-04-14T16:00:49Z",