1 files changed, 1 insertions, 0 deletions
diff --git a/nixpkgs/pkgs/development/python-modules/add-trailing-comma/default.nix b/nixpkgs/pkgs/development/python-modules/add-trailing-comma/default.nix
index 785c011c6d66..1bf592b99517 100644
--- a/nixpkgs/pkgs/development/python-modules/add-trailing-comma/default.nix
+++ b/nixpkgs/pkgs/development/python-modules/add-trailing-comma/default.nix
@@ -34,6 +34,7 @@ buildPythonPackage rec {
 
   meta = with lib; {
     description = "A tool (and pre-commit hook) to automatically add trailing commas to calls and literals";
+    mainProgram = "add-trailing-comma";
     homepage = "https://github.com/asottile/add-trailing-comma";
     license = licenses.mit;
     maintainers = with maintainers; [ gador ];