diff --git a/lib/libthr/thread/thr_mutex.c b/lib/libthr/thread/thr_mutex.c
index 57984ef6d0e6..303386db7fe7 100644
--- a/lib/libthr/thread/thr_mutex.c
+++ b/lib/libthr/thread/thr_mutex.c
@@ -384,6 +384,8 @@ __Tthr_mutex_init(pthread_mutex_t * __restrict mutex,
 	struct pthread_mutex *pmtx;
 	int ret;
 
+	_thr_check_init();
+
 	if (mutex_attr != NULL) {
 		ret = mutex_check_attr(*mutex_attr);
 		if (ret != 0)