diff --git a/Dockerfile b/Dockerfile
index b25c8e8..88dd959 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,12 +1,12 @@
 FROM nginx:alpine3.22
 
-ARG RELEASE_TAG="default"
+ARG RELEASETAG="default"
 
 COPY ./content /usr/share/nginx/html
 RUN \
   cd /usr/share/nginx/html && \
   ./snippet-indexer.sh && \
-  sed -i 's,%TAG%,'${RELEASE_TAG}','g about.md && \
+  sed -i 's,%TAG%,'${RELEASETAG}','g about.md && \
   chown -R nobody:nobody /var/cache/nginx /var/log/nginx && \
   sed -i 's/listen\s\+80;/listen 8080;/' /etc/nginx/conf.d/default.conf && \
   sed -i 's/index  index.html index.htm;/index   mdwiki.html;/' /etc/nginx/conf.d/default.conf && \