diff --git a/libc/libc.map.txt b/libc/libc.map.txt
index 3c23da2..0bcf761 100644
--- a/libc/libc.map.txt
+++ b/libc/libc.map.txt
@@ -1498,6 +1498,11 @@
     mtx_timedlock;
     mtx_trylock;
     mtx_unlock;
+    pthread_cond_clockwait;
+    pthread_mutex_clocklock;
+    pthread_rwlock_clockrdlock;
+    pthread_rwlock_clockwrlock;
+    sem_clockwait;
     thrd_create;
     thrd_current;
     thrd_detach;