diff --git a/Lib/asyncio/futures.py b/Lib/asyncio/futures.py
index 215f72d1910ecf..abc05476c0c7d8 100644
--- a/Lib/asyncio/futures.py
+++ b/Lib/asyncio/futures.py
@@ -120,14 +120,14 @@ def _schedule_callbacks(self):
         The callbacks are scheduled to be called as soon as possible. Also
         clears the callback list.
         """
-        callbacks = self._callbacks[:]
-        if not callbacks:
+        if not self._callbacks:
             return
 
-        self._callbacks[:] = []
-        for callback in callbacks:
+        for callback in self._callbacks:
             self._loop.call_soon(callback, self)
 
+        self._callbacks.clear()
+
     def cancelled(self):
         """Return True if the future was cancelled."""
         return self._state == _CANCELLED