diff --git a/pkgs/by-name/lu/lunar-client/package.nix b/pkgs/by-name/lu/lunar-client/package.nix
index 281282ffb2be..4dcfbb76e0b0 100644
--- a/pkgs/by-name/lu/lunar-client/package.nix
+++ b/pkgs/by-name/lu/lunar-client/package.nix
@@ -36,6 +36,7 @@ appimageTools.wrapType2 rec {
     description = "Free Minecraft client with mods, cosmetics, and performance boost.";
     homepage = "https://www.lunarclient.com/";
     license = with licenses; [ unfree ];
+    mainProgram = "lunar-client";
     maintainers = with maintainers; [ zyansheep Technical27 surfaceflinger ];
     platforms = [ "x86_64-linux" ];
   };