diff --git a/src/plugins/designer/formwindowfile.cpp b/src/plugins/designer/formwindowfile.cpp
index 09fbc0ae717..0719a91f41f 100644
--- a/src/plugins/designer/formwindowfile.cpp
+++ b/src/plugins/designer/formwindowfile.cpp
@@ -96,7 +96,7 @@ bool FormWindowFile::save(QString *errorString, const QString &name, bool autoSa
 
     m_formWindow->setDirty(false);
     setFilePath(fi.absoluteFilePath());
-    emit changed();
+    updateIsModified();
 
     return true;
 }