diff --git a/src/checks.c b/src/checks.c
index 3d8a5cf..ead3f7f 100644
--- a/src/checks.c
+++ b/src/checks.c
@@ -473,7 +473,7 @@
 
 	if (s->check.fastinter) {
 		expire = tick_add(now_ms, MS_TO_TICKS(s->check.fastinter));
-		if (s->check.task->expire > expire) {
+		if (tick_is_lt(expire, s->check.task->expire)) {
 			s->check.task->expire = expire;
 			/* requeue check task with new expire */
 			task_queue(s->check.task);