diff --git a/Dockerfile b/Dockerfile
index 67a1dc6..f13f99c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
 ARG tag=18-alpine
-FROM node:${image}
+FROM node:${tag}
 RUN yarn global add pm2
 RUN pm2 install typescript
\ No newline at end of file