diff --git a/Android.mk b/Android.mk
index a8982f8..06d98eb 100644
--- a/Android.mk
+++ b/Android.mk
@@ -17,7 +17,7 @@
 	CheckBattery.cpp \
 	Ext4Crypt.cpp \
 	VoldUtil.c \
-	cryptfs.c \
+	cryptfs.cpp \
 	Disk.cpp \
 	VolumeBase.cpp \
 	PublicVolume.cpp \