diff --git a/core/Makefile b/core/Makefile
index 863e560..6b6f4fa 100644
--- a/core/Makefile
+++ b/core/Makefile
@@ -1075,8 +1075,8 @@
 	done;
 	rm -rf $(TARGET_OUT_RAMDISK_16K)/lib/modules
 	mkdir -p $(TARGET_OUT_RAMDISK_16K)/lib/modules
-	KERNEL_RELEASE=`$(EXTRACT_KERNEL) --input $(BOARD_KERNEL_PATH_16K) --output-release /dev/stdout` ;\
-	IS_16K_KERNEL=`$(EXTRACT_KERNEL) --input $(BOARD_KERNEL_PATH_16K) --output-config /dev/stdout` ;\
+	KERNEL_RELEASE=`$(EXTRACT_KERNEL) --tools lz4:$(LZ4) --input $(BOARD_KERNEL_PATH_16K) --output-release` ;\
+	IS_16K_KERNEL=`$(EXTRACT_KERNEL) --tools lz4:$(LZ4) --input $(BOARD_KERNEL_PATH_16K) --output-config` ;\
 	if [[ "$$IS_16K_KERNEL" == *"CONFIG_ARM64_16K_PAGES=y"* ]]; then SUFFIX=_16k; fi ;\
 	cp -r $(RAMDISK_16K_STAGING_DIR)/lib/modules/0.0 $(TARGET_OUT_RAMDISK_16K)/lib/modules/$$KERNEL_RELEASE$$SUFFIX
 	$(MKBOOTFS) $(TARGET_OUT_RAMDISK_16K) | $(COMPRESSION_COMMAND) > $@