1 files changed, 1 insertions, 0 deletions
diff --git a/nixpkgs/pkgs/development/python-modules/cssmin/default.nix b/nixpkgs/pkgs/development/python-modules/cssmin/default.nix
index c9daf5d45827..6ab7f590f6d2 100644
--- a/nixpkgs/pkgs/development/python-modules/cssmin/default.nix
+++ b/nixpkgs/pkgs/development/python-modules/cssmin/default.nix
@@ -15,6 +15,7 @@ buildPythonPackage rec {
 
   meta = with lib; {
     description = "A Python port of the YUI CSS compression algorithm";
+    mainProgram = "cssmin";
     homepage = "https://github.com/zacharyvoase/cssmin";
     license = licenses.bsd3;
   };