diff --git a/pkgs/applications/audio/goattracker/default.nix b/pkgs/applications/audio/goattracker/default.nix
index 06e66fe4730f..b0d2204d0df3 100644
--- a/pkgs/applications/audio/goattracker/default.nix
+++ b/pkgs/applications/audio/goattracker/default.nix
@@ -67,6 +67,7 @@ in stdenv.mkDerivation (finalAttrs: {
     homepage = "https://cadaver.github.io/tools.html";
     downloadPage = "https://sourceforge.net/projects/goattracker2/";
     license = lib.licenses.gpl2Plus;
+    mainProgram = if isStereo then "gt2stereo" else "goattrk2";
     maintainers = with lib.maintainers; [ fgaz ];
     platforms = lib.platforms.all;
   };