diff --git a/Makefile b/Makefile
index 25ae4323..2a612937 100644
--- a/Makefile
+++ b/Makefile
@@ -25,6 +25,7 @@ install:
 	$(CC) install/mkfs.c -o $(BUILD_DIR)/mkfs
 	cd install; ./mkfs
 	@echo "--------------- Create the Bootrom Image --------------"
+	@echo "[Note] Require vivado_lab in your \$$PATH. Otherwise, you can execute the command in install/arty/write_cfgmem.tcl manually in Vivado."
 	cd install; vivado_lab -nojournal -mode batch -source arty/write_cfgmem.tcl; rm *.log *.prm
 
 loc: