diff --git a/kuiviewer/org.kde.kuiviewer.desktop b/kuiviewer/org.kde.kuiviewer.desktop
--- a/kuiviewer/org.kde.kuiviewer.desktop
+++ b/kuiviewer/org.kde.kuiviewer.desktop
@@ -56,7 +56,7 @@
 Name[x-test]=xxKUIViewerxx
 Name[zh_CN]=KUIViewer
 Name[zh_TW]=KUIViewer
-Exec=kuiviewer -caption %c
+Exec=kuiviewer -qwindowtitle %c
 Icon=kuiviewer
 Type=Application
 GenericName=Qt Designer UI File Viewer