diff --git a/core/Makefile b/core/Makefile
index b44d1d7..a7df61f 100644
--- a/core/Makefile
+++ b/core/Makefile
@@ -4621,6 +4621,12 @@
 ifneq ($(BOARD_PARTIAL_OTA_UPDATE_PARTITIONS_LIST),)
 	$(hide) echo "partial_ota_update_partitions_list=$(BOARD_PARTIAL_OTA_UPDATE_PARTITIONS_LIST)" >> $@
 endif
+ifeq ($(BUILDING_WITH_VSDK),true)
+	$(hide) echo "building_with_vsdk=true" >> $@
+endif
+ifeq ($(TARGET_FLATTEN_APEX),false)
+	$(hide) echo "target_flatten_apex=false" >> $@
+endif
 
 .PHONY: misc_info
 misc_info: $(INSTALLED_MISC_INFO_TARGET)