diff --git a/aiohttp/cookiejar.py b/aiohttp/cookiejar.py
index 89c35c176e6..6abb16045c8 100644
--- a/aiohttp/cookiejar.py
+++ b/aiohttp/cookiejar.py
@@ -374,7 +374,7 @@ def filter_cookies(self, request_url: URL) -> "BaseCookie[str]":
             )
             request_url = URL(request_url)
         # We always use BaseCookie now since all
-        # cookies set on on filtered are fully constructed
+        # cookies set on filtered are fully constructed
         # Morsels, not just names and values.
         filtered: BaseCookie[str] = BaseCookie()
         if not self._cookies: