diff --git a/nfc-extras/Android.mk b/nfc-extras/Android.mk
index cd7a45b..dc45a50 100644
--- a/nfc-extras/Android.mk
+++ b/nfc-extras/Android.mk
@@ -4,10 +4,10 @@
 
 LOCAL_MODULE_TAGS := optional
 
-LOCAL_SRC_FILES := $(call all-subdir-java-files)
-
-LOCAL_STATIC_JAVA_LIBRARIES := junit legacy-android-test
+LOCAL_SRC_FILES := $(call all-java-files-under, java)
 
 LOCAL_MODULE:= com.android.nfc_extras
 
 include $(BUILD_JAVA_LIBRARY)
+
+include $(call all-makefiles-under,$(LOCAL_PATH))
diff --git a/nfc-extras/tests/Android.mk b/nfc-extras/tests/Android.mk
index 3eca76d..d8fe5a6 100644
--- a/nfc-extras/tests/Android.mk
+++ b/nfc-extras/tests/Android.mk
@@ -22,6 +22,8 @@
     android.test.runner \
     com.android.nfc_extras
 
+LOCAL_STATIC_JAVA_LIBRARIES := junit legacy-android-test
+
 # Include all test java files.
 LOCAL_SRC_FILES := $(call all-java-files-under, src)