diff --git a/docker/Dockerfile b/docker/Dockerfile
index a053d89..1b7d5fc 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -8,7 +8,7 @@ FROM python:3.10.13-slim
 ARG IMAGE_TAG
 
 # Set an environment variable using the build-time argument
-ENV IMAGE_TAG_ENV=$IMAGE_TAG
+ENV IMAGE_TAG=$IMAGE_TAG
 
 
 LABEL org.opencontainers.image.source="https://github.com/ManiMatter/decluttarr"