1 files changed, 1 insertions, 0 deletions
diff --git a/pkgs/development/python-modules/sphinx-external-toc/default.nix b/pkgs/development/python-modules/sphinx-external-toc/default.nix
index 9812768a5de8..724877795f3e 100644
--- a/pkgs/development/python-modules/sphinx-external-toc/default.nix
+++ b/pkgs/development/python-modules/sphinx-external-toc/default.nix
@@ -34,6 +34,7 @@ buildPythonPackage rec {
 
   meta = with lib; {
     description = "A sphinx extension that allows the site-map to be defined in a single YAML file";
+    mainProgram = "sphinx-etoc";
     homepage = "https://github.com/executablebooks/sphinx-external-toc";
     changelog = "https://github.com/executablebooks/sphinx-external-toc/raw/v${version}/CHANGELOG.md";
     license = licenses.mit;