diff --git a/CleanSpec.mk b/CleanSpec.mk
index 6ae050f..ec9e6d9 100644
--- a/CleanSpec.mk
+++ b/CleanSpec.mk
@@ -52,3 +52,6 @@ $(call add-clean-step, rm -rf $(OUT_DIR)/target/product/taimen/vendor/etc/sensor
 $(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/etc/init/init-$(PRODUCT_HARDWARE).rc)
 $(call add-clean-step, rm -rf $(PRODUCT_OUT)/root/init.$(PRODUCT_HARDWARE).usb.rc)
 $(call add-clean-step, rm -rf $(PRODUCT_OUT)/root/init.$(PRODUCT_HARDWARE).logging.rc)
+
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/lib/libgptutils.so)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/lib64/libigptutils.so)
diff --git a/gpt-utils/Android.mk b/gpt-utils/Android.mk
index 167855d..ce9915e 100644
--- a/gpt-utils/Android.mk
+++ b/gpt-utils/Android.mk
@@ -37,6 +37,8 @@ LOCAL_ADDITIONAL_DEPENDENCIES := $(TARGET_OUT_INTERMEDIATES)/KERNEL_OBJ/usr
 endif
 LOCAL_SHARED_LIBRARIES += liblog libsparse libcutils
 LOCAL_MODULE := libgptutils
+LOCAL_PROPRIETARY_MODULE := true
+
 LOCAL_MODULE_OWNER := qti
 LOCAL_COPY_HEADERS_TO := gpt-utils/inc
 LOCAL_COPY_HEADERS := gpt-utils.h