diff --git a/libc/Android.mk b/libc/Android.mk
index c268a87..487cbd8 100644
--- a/libc/Android.mk
+++ b/libc/Android.mk
@@ -391,6 +391,7 @@
     upstream-openbsd/lib/libc/stdio/fgetws.c \
     upstream-openbsd/lib/libc/stdio/fileno.c \
     upstream-openbsd/lib/libc/stdio/findfp.c \
+    upstream-openbsd/lib/libc/stdio/fmemopen.c \
     upstream-openbsd/lib/libc/stdio/fprintf.c \
     upstream-openbsd/lib/libc/stdio/fpurge.c \
     upstream-openbsd/lib/libc/stdio/fputc.c \
@@ -419,6 +420,8 @@
     upstream-openbsd/lib/libc/stdio/getwchar.c \
     upstream-openbsd/lib/libc/stdio/makebuf.c \
     upstream-openbsd/lib/libc/stdio/mktemp.c \
+    upstream-openbsd/lib/libc/stdio/open_memstream.c \
+    upstream-openbsd/lib/libc/stdio/open_wmemstream.c \
     upstream-openbsd/lib/libc/stdio/perror.c \
     upstream-openbsd/lib/libc/stdio/printf.c \
     upstream-openbsd/lib/libc/stdio/putc.c \