diff --git a/src/h3.c b/src/h3.c
index 4d373f5d9..a7968454a 100644
--- a/src/h3.c
+++ b/src/h3.c
@@ -834,6 +834,7 @@ static int h3_uqs_init(struct h3_uqs *h3_uqs, struct h3 *h3,
 
 	h3_uqs->wait_event.tasklet->process = t;
 	h3_uqs->wait_event.tasklet->context = h3_uqs;
+	h3_uqs->wait_event.events = 0;
 	return 1;
 }