diff --git a/qucs/qucs/qucs.desktop b/qucs/qucs/qucs.desktop
index 3fc80b5..ca64a42 100755
--- a/qucs/qucs/qucs.desktop
+++ b/qucs/qucs/qucs.desktop
@@ -12,5 +12,5 @@ Icon=qucs
 Terminal=false
 
 Type=Application
-Categories=Education;Electronics
+Categories=Education;Electronics;
 StartupNotify=false