diff --git a/pkgs/games/osu-lazer/default.nix b/pkgs/games/osu-lazer/default.nix
index 2b107d2ba781..c2714e849622 100644
--- a/pkgs/games/osu-lazer/default.nix
+++ b/pkgs/games/osu-lazer/default.nix
@@ -117,6 +117,7 @@ in stdenv.mkDerivation rec {
     ];
     maintainers = with maintainers; [ oxalica ];
     platforms = [ "x86_64-linux" ];
+    mainProgram = "osu!";
   };
   passthru.updateScript = ./update.sh;
 }