diff --git a/Lib/asyncio/base_events.py b/Lib/asyncio/base_events.py
index 5cc7944f24a2b3..9584d6355f89b2 100644
--- a/Lib/asyncio/base_events.py
+++ b/Lib/asyncio/base_events.py
@@ -631,7 +631,7 @@ def set_default_executor(self, executor):
     def _getaddrinfo_debug(self, host, port, family, type, proto, flags):
         msg = [f"{host}:{port!r}"]
         if family:
-            msg.append(f'family={family!r}' % family)
+            msg.append(f'family={family!r}')
         if type:
             msg.append(f'type={type!r}')
         if proto: