diff --git a/app/helpers/issues_helper.rb b/app/helpers/issues_helper.rb
index 72bd1fbbd81da9b5683fcd6b85c75df63c30e095..46334f939d28ea8260160e23f2f410da424c0594 100644
--- a/app/helpers/issues_helper.rb
+++ b/app/helpers/issues_helper.rb
@@ -102,7 +102,7 @@ module IssuesHelper
   end
 
   def issue_button_visibility(issue, closed)
-    return 'hidden' if issue.closed? == closed
+    return 'hidden' if issue.closed? == closed || (issue.try(:merged?) == closed && !issue.closed?)
   end
 
   def merge_requests_sentence(merge_requests)