diff --git a/aiohttp/cookiejar.py b/aiohttp/cookiejar.py
index 796ff3ccb3c..0ff9532406f 100644
--- a/aiohttp/cookiejar.py
+++ b/aiohttp/cookiejar.py
@@ -121,8 +121,7 @@ def clear(self, predicate: Optional[ClearCookiePredicate] = None) -> None:
                     to_del.append(key)
 
         for domain, path, name in to_del:
-            key = (domain, name)
-            self._host_only_cookies.discard(key)
+            self._host_only_cookies.discard((domain, name))
             key = (domain, path, name)
             if key in self._expirations:
                 del self._expirations[(domain, path, name)]