diff --git a/src/main/scala/gitbucket/core/controller/ApiController.scala b/src/main/scala/gitbucket/core/controller/ApiController.scala
index 7e2ef3932..1cf08af2d 100644
--- a/src/main/scala/gitbucket/core/controller/ApiController.scala
+++ b/src/main/scala/gitbucket/core/controller/ApiController.scala
@@ -33,6 +33,7 @@ class ApiController
     with RepositoryCreationService
     with IssueCreationService
     with HandleCommentService
+    with MergeService
     with WebHookService
     with WebHookPullRequestService
     with WebHookIssueCommentService