diff --git a/fastapi/security/utils.py b/fastapi/security/utils.py
index 3ddd83a43..2da0dd20f 100644
--- a/fastapi/security/utils.py
+++ b/fastapi/security/utils.py
@@ -1,4 +1,7 @@
-def get_authorization_scheme_param(authorization_header_value: str):
+from typing import Tuple
+
+
+def get_authorization_scheme_param(authorization_header_value: str) -> Tuple[str, str]:
     if not authorization_header_value:
         return "", ""
     scheme, _, param = authorization_header_value.partition(" ")