diff --git a/typings/socketio/exceptions.pyi b/typings/socketio/exceptions.pyi
index 8fece09..14d5feb 100644
--- a/typings/socketio/exceptions.pyi
+++ b/typings/socketio/exceptions.pyi
@@ -1 +1,2 @@
 class ConnectionError(Exception): ...
+class BadNamespaceError(Exception): ...