diff --git a/libc/libc.arm64.map b/libc/libc.arm64.map
index e5933ae..fbeaa0d 100644
--- a/libc/libc.arm64.map
+++ b/libc/libc.arm64.map
@@ -1159,6 +1159,8 @@
     getifaddrs;
     if_freenameindex;
     if_nameindex;
+    lockf;
+    lockf64;
     preadv;
     preadv64;
     pthread_barrierattr_destroy;