1 files changed, 1 insertions, 0 deletions
diff --git a/nixpkgs/pkgs/development/python-modules/matplotx/default.nix b/nixpkgs/pkgs/development/python-modules/matplotx/default.nix
index f20812606869..77643ece548d 100644
--- a/nixpkgs/pkgs/development/python-modules/matplotx/default.nix
+++ b/nixpkgs/pkgs/development/python-modules/matplotx/default.nix
@@ -59,6 +59,7 @@ buildPythonPackage rec {
   meta = {
     homepage = "https://github.com/nschloe/matplotx";
     description = "More styles and useful extensions for Matplotlib";
+    mainProgram = "matplotx";
     changelog = "https://github.com/nschloe/matplotx/releases/tag/v${version}";
     license = lib.licenses.mit;
     maintainers = with lib.maintainers; [ swflint ];