diff --git a/skillbridge/client/functions.py b/skillbridge/client/functions.py
index 113b483..6b49667 100644
--- a/skillbridge/client/functions.py
+++ b/skillbridge/client/functions.py
@@ -20,7 +20,7 @@ def __repr__(self) -> str:
         return f"<function collection {self._prefix}*>\n{dir(self)}"
 
     @lru_cache(maxsize=128)
-    def __dir__(self) -> List[str]:  # type: ignore
+    def __dir__(self) -> List[str]:
         code = self._translate.encode_globals(self._prefix)
         result = self._channel.send(code)
         functions = self._translate.decode_globals(result)