diff --git a/KMail.desktop b/KMail.desktop
index 08026cf08..3579f4bc6 100644
--- a/KMail.desktop
+++ b/KMail.desktop
@@ -71,4 +71,4 @@ Terminal=0
 
 X-KDE-StartupNotify=true
 X-DCOP-ServiceType=Unique
-Categories=QT;KDE;Network
+Categories=Qt;KDE;Network