diff --git a/Lib/threading.py b/Lib/threading.py
index 8a1de42bea6..d88f1be4ea3 100644
--- a/Lib/threading.py
+++ b/Lib/threading.py
@@ -151,7 +151,8 @@ class _RLock(_Verbose):
 
     # Internal methods used by condition variables
 
-    def _acquire_restore(self, (count, owner)):
+    def _acquire_restore(self, count_owner):
+        count, owner = count_owner
         self.__block.acquire()
         self.__count = count
         self.__owner = owner