diff --git a/pkgs/development/python-modules/flask-socketio/default.nix b/pkgs/development/python-modules/flask-socketio/default.nix
index 85e5b5d3189d..496676600fc9 100644
--- a/pkgs/development/python-modules/flask-socketio/default.nix
+++ b/pkgs/development/python-modules/flask-socketio/default.nix
@@ -28,6 +28,8 @@ buildPythonPackage rec {
     pytestCheckHook
   ];
 
+  pythonImportsCheck = [ "flask_socketio" ];
+
   meta = with lib; {
     description = "Socket.IO integration for Flask applications";
     homepage = "https://github.com/miguelgrinberg/Flask-SocketIO/";