diff --git a/dev.aunetx.deezer.desktop b/dev.aunetx.deezer.desktop
index 0ea9bd5..03ac68b 100644
--- a/dev.aunetx.deezer.desktop
+++ b/dev.aunetx.deezer.desktop
@@ -9,6 +9,6 @@ Terminal=false
 MimeType=x-scheme-handler/deezer;
 Categories=Audio;Music;Player;AudioVideo;
 Keywords=Music;Player;Streaming;Online;
-StartupWMClass=Deezer
+StartupWMClass=deezer-desktop
 SingleMainWindow=true
 X-GNOME-UsesNotifications=true
\ No newline at end of file
diff --git a/package-append.json b/package-append.json
index 74bab92..2abaff6 100644
--- a/package-append.json
+++ b/package-append.json
@@ -53,7 +53,7 @@
           "MimeType": "x-scheme-handler/deezer;",
           "Categories": "Audio;Music;Player;AudioVideo;",
           "Keywords": "Music;Player;Streaming;Online;",
-          "StartupWMClass": "Deezer",
+          "StartupWMClass": "deezer-desktop",
           "SingleMainWindow": "true",
           "X-GNOME-UsesNotifications": "true"
         }