diff --git a/Android.mk b/Android.mk
index 54abb23..e4256ae 100644
--- a/Android.mk
+++ b/Android.mk
@@ -10,6 +10,7 @@
 	DirectVolume.cpp \
 	logwrapper.c \
 	Process.cpp \
+	Ext4.cpp \
 	Fat.cpp \
 	Loop.cpp \
 	Devmapper.cpp \