clean step for build.prop
diff --git a/cleanspec.mk b/cleanspec.mk
index 5bf4278..40b62e0 100644
--- a/cleanspec.mk
+++ b/cleanspec.mk
@@ -105,6 +105,7 @@
 $(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/app)
 $(call add-clean-step, rm -rf $(OUT_DIR)/target/common/obj/APPS)
 $(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/build.prop)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/build.prop)
 
 # ************************************************
 # NEWER CLEAN STEPS MUST BE AT THE END OF THE LIST