diff --git a/libc/libc.x86.brillo.map b/libc/libc.x86.brillo.map
index db328cf..a72fa61 100644
--- a/libc/libc.x86.brillo.map
+++ b/libc/libc.x86.brillo.map
@@ -1212,6 +1212,7 @@
     freeifaddrs;
     fseeko64;
     fsetpos64;
+    ftello64;
     funopen64;
     getgrgid_r;
     getgrnam_r;