diff --git a/Android.mk b/Android.mk
index 0b6ee17..cc06643 100644
--- a/Android.mk
+++ b/Android.mk
@@ -982,6 +982,8 @@
     $(ue_libupdate_engine_android_exported_static_libraries:-host=)
 LOCAL_SHARED_LIBRARIES += \
     $(ue_libupdate_engine_android_exported_shared_libraries:-host=)
+LOCAL_SRC_FILES += \
+    update_attempter_android_unittest.cc
 endif  # local_use_omaha == 1
 ifeq ($(local_use_chrome_network_proxy),1)
 LOCAL_SRC_FILES += \