$(BUILT_SYSTEMIMAGE): $(PRODUCT_OUT)/build.prop
ifneq ($(MKSQUASHFS),)
-$(PRODUCT_OUT)/system.sfs: $(BUILT_SYSTEMIMAGE) | $(SIMG2IMG)
- $(hide) $(SIMG2IMG) $< $@
+$(systemimg): $(BUILT_SYSTEMIMAGE) | $(MKSQUASHFS)
+ $(call build-squashfs-target,$^,$@)
endif