diff --git a/lib/libthr/thread/thr_cancel.c b/lib/libthr/thread/thr_cancel.c
index 4194fe180565..7e78fe9163c7 100644
--- a/lib/libthr/thread/thr_cancel.c
+++ b/lib/libthr/thread/thr_cancel.c
@@ -71,7 +71,7 @@ _thr_cancel(pthread_t pthread)
 	 * _thr_find_thread and THR_THREAD_UNLOCK will enter and leave critical
 	 * region automatically.
 	 */
-	if ((ret = _thr_find_thread(curthread, pthread, 0)) == 0) {
+	if ((ret = _thr_find_thread(curthread, pthread, 1)) == 0) {
 		if (!pthread->cancel_pending) {
 			pthread->cancel_pending = 1;
 			if (pthread->state != PS_DEAD)