diff --git a/app/helpers/issuables_helper.rb b/app/helpers/issuables_helper.rb
index 7fd35613b6779096ed23f7cb57e3eedda937be9b..a8468537d42df9caaa9a19618ae65b13c0f511f8 100644
--- a/app/helpers/issuables_helper.rb
+++ b/app/helpers/issuables_helper.rb
@@ -78,7 +78,7 @@ module IssuablesHelper
   end
 
   def selected_labels(project, label_query)
-    Label.where(label_query.merge(project_id: project))
+    Label.where(label_query.merge(project_id: project)).pluck(:title).uniq
   end
 
   private