1 files changed, 1 insertions, 0 deletions
diff --git a/pkgs/tools/package-management/nix-update-source/default.nix b/pkgs/tools/package-management/nix-update-source/default.nix
index ebfd730544e1..533f487e3974 100644
--- a/pkgs/tools/package-management/nix-update-source/default.nix
+++ b/pkgs/tools/package-management/nix-update-source/default.nix
@@ -54,5 +54,6 @@ python3Packages.buildPythonApplication rec {
     description = "Utility to automate updating of nix derivation sources";
     maintainers = with lib.maintainers; [ timbertson ];
     license = lib.licenses.mit;
+    mainProgram = "nix-update-source";
   };
 }