diff --git a/ChaChaIPToCountryDaemon/core.py b/ChaChaIPToCountryDaemon/core.py
index 057cdbe..cf4136f 100644
--- a/ChaChaIPToCountryDaemon/core.py
+++ b/ChaChaIPToCountryDaemon/core.py
@@ -97,8 +97,8 @@ class ChaChaIPToCountryStorage:
             
         await self.DataSetlock.acquire()
         try:
-            for key,set in set.items():            
-                if IPAddress(ip) in set:
+            for key,_set in set.items():            
+                if IPAddress(ip) in _set:
                     return key
         finally:
             self.DataSetlock.release()