diff --git a/src/lib/Hydra/Controller/Project.pm b/src/lib/Hydra/Controller/Project.pm
index 20b3bd3b..c38ff6ad 100644
--- a/src/lib/Hydra/Controller/Project.pm
+++ b/src/lib/Hydra/Controller/Project.pm
@@ -171,6 +171,10 @@ sub updateProject {
             });
     } else {
         $project->jobsets->search({ name => ".jobsets" })->delete;
+        $project->update(
+            { decltype => ""
+            , declvalue => ""
+            });
     }
 }