diff --git a/libc/libc.x86.map b/libc/libc.x86.map
index 2b165cc..f1308ea 100644
--- a/libc/libc.x86.map
+++ b/libc/libc.x86.map
@@ -1344,6 +1344,7 @@
     posix_spawn_file_actions_destroy;
     posix_spawn_file_actions_init;
     posix_spawnp;
+    pthread_setschedprio;
     sethostent;
     setnetent;
     setprotoent;