diff --git a/state/scan.py b/state/scan.py
index ceffbca..a2eae9a 100644
--- a/state/scan.py
+++ b/state/scan.py
@@ -26,7 +26,7 @@ async def get_all_pattern(uid):
 async def get_average_pattern(pattern):
     scores = []
     async for key in redis.scan_iter(pattern):
-        scr = await redis.get(key)
+        scr = await redis.get(str(key))
         scr = int(scr)
         if isinstance(scr, int):
             scores.append(scr)