diff --git a/libc/libc.map.txt b/libc/libc.map.txt
index e6ea3c2..824682b 100644
--- a/libc/libc.map.txt
+++ b/libc/libc.map.txt
@@ -1593,6 +1593,7 @@
     mktime_z;
     __riscv_flush_icache; # riscv64
     __riscv_hwprobe; # riscv64
+    strerrorname_np;
     tcgetwinsize;
     tcsetwinsize;
     timespec_getres;