diff --git a/Lib/sched.py b/Lib/sched.py
index 1c7bfea..aecdb2a 100644
--- a/Lib/sched.py
+++ b/Lib/sched.py
@@ -117,7 +117,7 @@
                     action(*argument)
                     delayfunc(0)   # Let other threads run
                 else:
-                    heapq.heappush(event)
+                    heapq.heappush(q, event)
 
     @property
     def queue(self):