diff --git a/Android.mk b/Android.mk
index 9dba651..d0b199d 100644
--- a/Android.mk
+++ b/Android.mk
@@ -27,6 +27,7 @@
 	MoveTask.cpp \
 	Benchmark.cpp \
 	TrimTask.cpp \
+	KeyBuffer.cpp \
 	Keymaster.cpp \
 	KeyStorage.cpp \
 	KeyUtil.cpp \