diff --git a/Android.mk b/Android.mk
index 81c2bbe9..ce837b1 100644
--- a/Android.mk
+++ b/Android.mk
@@ -28,6 +28,7 @@
 LOCAL_SRC_FILES := $(call all-java-files-under, src/com/android/email)
 LOCAL_SRC_FILES += $(call all-java-files-under, src/com/beetstra)
 LOCAL_RESOURCE_DIR := $(addprefix $(LOCAL_PATH)/, $(res_dir))
+LOCAL_AAPT_FLAGS := --auto-add-overlay
 
 LOCAL_STATIC_JAVA_LIBRARIES := android-common com.android.emailcommon guava android-common-chips