1 files changed, 1 insertions, 0 deletions
diff --git a/nixpkgs/pkgs/development/python-modules/meshcat/default.nix b/nixpkgs/pkgs/development/python-modules/meshcat/default.nix
index 8f79a1477451..ff1ef37b22e5 100644
--- a/nixpkgs/pkgs/development/python-modules/meshcat/default.nix
+++ b/nixpkgs/pkgs/development/python-modules/meshcat/default.nix
@@ -42,6 +42,7 @@ buildPythonPackage rec {
   meta = with lib; {
     homepage = "https://github.com/rdeits/meshcat-python";
     description = "WebGL-based 3D visualizer for Python";
+    mainProgram = "meshcat-server";
     license = licenses.mit;
     maintainers = with maintainers; [ wegank ];
   };