diff --git a/quanta/quanta.tdevelop b/quanta/quanta.tdevelop
index 9dbadfd9..3d76a479 100644
--- a/quanta/quanta.tdevelop
+++ b/quanta/quanta.tdevelop
@@ -320,7 +320,7 @@
       <designerpluginpaths/>
     </qt>
     <designerintegration>
-      <qtdesigner/>
+      <tqtdesigner/>
     </designerintegration>
     <splitheadersource>
       <enabled>false</enabled>