1 files changed, 1 insertions, 0 deletions
diff --git a/nixpkgs/pkgs/development/python-modules/rnc2rng/default.nix b/nixpkgs/pkgs/development/python-modules/rnc2rng/default.nix
index e6abf4f189f0..bece0219a1c7 100644
--- a/nixpkgs/pkgs/development/python-modules/rnc2rng/default.nix
+++ b/nixpkgs/pkgs/development/python-modules/rnc2rng/default.nix
@@ -22,6 +22,7 @@ buildPythonPackage rec {
   meta = with lib; {
     homepage = "https://github.com/djc/rnc2rng";
     description = "Compact to regular syntax conversion library for RELAX NG schemata";
+    mainProgram = "rnc2rng";
     license = licenses.mit;
     maintainers = with maintainers; [ bcdarwin ];
   };