diff --git a/libc/Android.mk b/libc/Android.mk
index 631de5e..c74c237 100644
--- a/libc/Android.mk
+++ b/libc/Android.mk
@@ -406,6 +406,7 @@
     upstream-openbsd/lib/libc/locale/wcsxfrm.c \
     upstream-openbsd/lib/libc/locale/wctob.c \
     upstream-openbsd/lib/libc/locale/wctomb.c \
+    upstream-openbsd/lib/libc/net/base64.c \
     upstream-openbsd/lib/libc/net/htonl.c \
     upstream-openbsd/lib/libc/net/htons.c \
     upstream-openbsd/lib/libc/net/inet_lnaof.c \