diff --git a/minheap-internal.h b/minheap-internal.h
index 24f19633..b3b6f1fd 100644
--- a/minheap-internal.h
+++ b/minheap-internal.h
@@ -128,7 +128,6 @@ int min_heap_adjust_(min_heap_t *s, struct event *e)
 			min_heap_shift_down_(s, e->ev_timeout_pos.min_heap_idx, e);
 		return 0;
 	}
-	return -1;
 }
 
 int min_heap_reserve_(min_heap_t* s, unsigned n)