diff --git a/ormar/protocols/relation_protocol.py b/ormar/protocols/relation_protocol.py
index 4b342e7..ac6ed6c 100644
--- a/ormar/protocols/relation_protocol.py
+++ b/ormar/protocols/relation_protocol.py
@@ -3,7 +3,7 @@ from typing import TYPE_CHECKING, Type, Union
 try:
     from typing import Protocol
 except ImportError:
-    from typing_extensions import Protocol
+    from typing_extensions import Protocol  # type: ignore
 
 if TYPE_CHECKING:  # pragma: nocover
     from ormar import Model