diff --git a/CleanSpec.mk b/CleanSpec.mk
index c557635..eeb4198 100644
--- a/CleanSpec.mk
+++ b/CleanSpec.mk
@@ -54,3 +54,4 @@
 $(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/etc/init/android.hardware.bluetooth*)
 $(call add-clean-step, rm -rf $(OUT)/soong/.intermediates/)
 $(call add-clean-step, rm -rf $(OUT_DIR)/soong/.intermediates/hardware/interfaces/)
+$(call add-clean-step, rm -rf $(OUT_DIR)/soong/.intermediates/hardware/interfaces/)