diff --git a/data/com.oyajun.ColorCode.desktop.in b/data/com.oyajun.ColorCode.desktop.in
index 7b16f3b..33c42eb 100644
--- a/data/com.oyajun.ColorCode.desktop.in
+++ b/data/com.oyajun.ColorCode.desktop.in
@@ -4,5 +4,5 @@ Exec=color-code
 Icon=com.oyajun.ColorCode
 Terminal=false
 Type=Application
-Categories=GTK;Utility;
+Categories=Utility;Science;Electricity;
 StartupNotify=true