diff --git a/libc/libc.map b/libc/libc.map
index 4670079..9456920 100644
--- a/libc/libc.map
+++ b/libc/libc.map
@@ -1342,6 +1342,7 @@
     __write_chk;
     getgrgid_r;
     getgrnam_r;
+    strchrnul;
 } LIBC;
 
 LIBC_PRIVATE {