diff --git a/libc/libc.mips.brillo.map b/libc/libc.mips.brillo.map
index 2cf5df0..ce4d4ad 100644
--- a/libc/libc.mips.brillo.map
+++ b/libc/libc.mips.brillo.map
@@ -1255,6 +1255,7 @@
     catclose;
     catgets;
     catopen;
+    ctermid;
     endgrent;
     endpwent;
     futimes;