diff --git a/cockatrice/continuumatrice.desktop b/cockatrice/continuumatrice.desktop
index 6cee62c60..d3919eb15 100644
--- a/cockatrice/continuumatrice.desktop
+++ b/cockatrice/continuumatrice.desktop
@@ -4,8 +4,9 @@ Type=Application
 Name=Continuumatrice
 GenericName=Continuum Universes Card Game Client
 Comment=Play Continuum Universes card games
-Exec=continuumatrice %F
+Exec=continuumatrice %U
 Icon=continuumatrice
 Terminal=false
 Categories=Game;CardGame;
 StartupNotify=true
+MimeType=x-scheme-handler/continuumatrice;