1 files changed, 1 insertions, 0 deletions
diff --git a/pkgs/games/openttd/nml.nix b/pkgs/games/openttd/nml.nix
index 8ec8adf5f22b..65dddce236e3 100644
--- a/pkgs/games/openttd/nml.nix
+++ b/pkgs/games/openttd/nml.nix
@@ -23,6 +23,7 @@ python3.pkgs.buildPythonApplication rec {
   meta = with lib; {
     homepage = "http://openttdcoop.org/";
     description = "Compiler for OpenTTD NML files";
+    mainProgram = "nmlc";
     license = licenses.gpl2;
     maintainers = with maintainers; [ ToxicFrog ];
   };