diff --git a/libc/libc.mips.map b/libc/libc.mips.map
index a32131f..8a525bc 100644
--- a/libc/libc.mips.map
+++ b/libc/libc.mips.map
@@ -1350,6 +1350,7 @@
     sethostent;
     setnetent;
     setprotoent;
+    swab;
     syncfs;
 } LIBC_O;