diff --git a/pkgs/development/tools/luaformatter/default.nix b/pkgs/development/tools/luaformatter/default.nix
index 064ef8453d25..2745e7e01b13 100644
--- a/pkgs/development/tools/luaformatter/default.nix
+++ b/pkgs/development/tools/luaformatter/default.nix
@@ -26,5 +26,6 @@ stdenv.mkDerivation rec {
     homepage = "https://github.com/koihik/luaformatter";
     license = licenses.asl20;
     maintainers = with maintainers; [ figsoda ];
+    mainProgram = "lua-format";
   };
 }