diff --git a/src/main/scala/gitbucket/core/controller/RepositoryViewerController.scala b/src/main/scala/gitbucket/core/controller/RepositoryViewerController.scala
index 38216c9..3da3594 100644
--- a/src/main/scala/gitbucket/core/controller/RepositoryViewerController.scala
+++ b/src/main/scala/gitbucket/core/controller/RepositoryViewerController.scala
@@ -974,7 +974,9 @@
             createIssueComment(repository.owner, repository.name, commitInfo)
 
             // close issue by commit message
-            closeIssuesFromMessage(message, loginAccount.userName, repository.owner, repository.name)
+            if (branch == repository.repository.defaultBranch) {
+              closeIssuesFromMessage(message, loginAccount.userName, repository.owner, repository.name)
+            }
 
             // call post commit hook
             PluginRegistry().getReceiveHooks.foreach { hook =>