diff --git a/include/package.mk b/include/package.mk
index 2c34a5850c9bbce16ee9ba5fd1c956c76690a916..8208e36cfc452ddb0f94245f694d956b42897d83 100644
--- a/include/package.mk
+++ b/include/package.mk
@@ -131,7 +131,7 @@ CONFIG_SITE:=$(INCLUDE_DIR)/site/$(REAL_GNU_TARGET_NAME)
 CUR_MAKEFILE:=$(filter-out Makefile,$(firstword $(MAKEFILE_LIST)))
 SUBMAKE:=$(NO_TRACE_MAKE) $(if $(CUR_MAKEFILE),-f $(CUR_MAKEFILE))
 PKG_CONFIG_PATH=$(STAGING_DIR)/usr/lib/pkgconfig:$(STAGING_DIR)/usr/share/pkgconfig
-unexport QUIET
+unexport QUIET CONFIG_SITE
 
 ifeq ($(DUMP)$(filter prereq clean refresh update,$(MAKECMDGOALS)),)
   ifneq ($(if $(QUILT),,$(CONFIG_AUTOREBUILD)),)