diff --git a/libc/Android.mk b/libc/Android.mk
index 51002e5..0485d72 100644
--- a/libc/Android.mk
+++ b/libc/Android.mk
@@ -229,6 +229,7 @@
     bionic/umount.cpp \
     bionic/unlink.cpp \
     bionic/utimes.cpp \
+    bionic/vdso.cpp \
     bionic/vfork.cpp \
     bionic/wait.cpp \
     bionic/wchar.cpp \