diff --git a/libc/Android.mk b/libc/Android.mk
index 44bf388..1008082 100644
--- a/libc/Android.mk
+++ b/libc/Android.mk
@@ -119,6 +119,7 @@
     bionic/chown.cpp \
     bionic/clock.cpp \
     bionic/clone.cpp \
+    bionic/cmsg_nxthdr.cpp \
     bionic/dirent.cpp \
     bionic/dup2.cpp \
     bionic/epoll_create.cpp \