diff --git a/aiomysql/sa/result.py b/aiomysql/sa/result.py
index faeaff56..f34d3ff9 100644
--- a/aiomysql/sa/result.py
+++ b/aiomysql/sa/result.py
@@ -447,7 +447,7 @@ async def scalar(self):
         else:
             return None
 
-    async def __aiter__(self):
+    def __aiter__(self):
         return self
 
     async def __anext__(self):