diff --git a/Android.mk b/Android.mk
index 12b6fc0..656aba8 100644
--- a/Android.mk
+++ b/Android.mk
@@ -125,6 +125,7 @@
     common/terminator.cc \
     common/utils.cc \
     payload_consumer/bzip_extent_writer.cc \
+    payload_consumer/cached_file_descriptor.cc \
     payload_consumer/delta_performer.cc \
     payload_consumer/download_action.cc \
     payload_consumer/extent_reader.cc \
@@ -923,6 +924,7 @@
     common/test_utils.cc \
     common/utils_unittest.cc \
     payload_consumer/bzip_extent_writer_unittest.cc \
+    payload_consumer/cached_file_descriptor_unittest.cc \
     payload_consumer/delta_performer_integration_test.cc \
     payload_consumer/delta_performer_unittest.cc \
     payload_consumer/extent_reader_unittest.cc \