diff --git a/libc/libc.map.txt b/libc/libc.map.txt
index 738836c..76cb168 100644
--- a/libc/libc.map.txt
+++ b/libc/libc.map.txt
@@ -1350,6 +1350,11 @@
     pthread_barrier_destroy;
     pthread_barrier_init;
     pthread_barrier_wait;
+    pthread_spin_destroy;
+    pthread_spin_init;
+    pthread_spin_lock;
+    pthread_spin_trylock;
+    pthread_spin_unlock;
     pwritev;
     pwritev64;
     scandirat;