diff --git a/libc/libc.mips.brillo.map b/libc/libc.mips.brillo.map
index 6b5744c..aac1d8c 100644
--- a/libc/libc.mips.brillo.map
+++ b/libc/libc.mips.brillo.map
@@ -1263,6 +1263,7 @@
     getpwent;
     getsubopt;
     hasmntopt;
+    mblen;
     pthread_getname_np;
     quotactl;
     setdomainname;