diff --git a/libc/libc.arm.map b/libc/libc.arm.map
index 9890b14..40f645c 100644
--- a/libc/libc.arm.map
+++ b/libc/libc.arm.map
@@ -1283,6 +1283,7 @@
     sigpause;
     sigrelse;
     sigset;
+    sync_file_range;
 } LIBC_N;
 
 LIBC_PRIVATE {