diff --git a/src/main/scala/app/PullRequestsController.scala b/src/main/scala/app/PullRequestsController.scala
index 384ad34cf..5e2c6bcdc 100644
--- a/src/main/scala/app/PullRequestsController.scala
+++ b/src/main/scala/app/PullRequestsController.scala
@@ -111,7 +111,7 @@ trait PullRequestsControllerBase extends ControllerBase {
       val userName   = context.loginAccount.get.userName
       if(repository.repository.defaultBranch != branchName){
         using(Git.open(getRepositoryDir(repository.owner, repository.name))){ git =>
-          git.branchDelete().setBranchNames(branchName).call()
+          git.branchDelete().setForce(true).setBranchNames(branchName).call()
           recordDeleteBranchActivity(repository.owner, repository.name, userName, branchName)
         }
       }
diff --git a/src/main/scala/app/RepositoryViewerController.scala b/src/main/scala/app/RepositoryViewerController.scala
index e5ae04ae6..8fed090eb 100644
--- a/src/main/scala/app/RepositoryViewerController.scala
+++ b/src/main/scala/app/RepositoryViewerController.scala
@@ -164,7 +164,7 @@ trait RepositoryViewerControllerBase extends ControllerBase {
     val userName   = context.loginAccount.get.userName
     if(repository.repository.defaultBranch != branchName){
       using(Git.open(getRepositoryDir(repository.owner, repository.name))){ git =>
-        git.branchDelete().setBranchNames(branchName).call()
+        git.branchDelete().setForce(true).setBranchNames(branchName).call()
         recordDeleteBranchActivity(repository.owner, repository.name, userName, branchName)
       }
     }