diff --git a/libc/libc.x86.map b/libc/libc.x86.map
index fdee2c6..6578370 100644
--- a/libc/libc.x86.map
+++ b/libc/libc.x86.map
@@ -1284,6 +1284,11 @@
     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;