diff --git a/.gitea/workflows/build-frontend.yml b/.gitea/workflows/build-frontend.yml
index 5de19c7..2eb1f3e 100644
--- a/.gitea/workflows/build-frontend.yml
+++ b/.gitea/workflows/build-frontend.yml
@@ -54,7 +54,7 @@ jobs:
           #exec "$@"
           echo 'Before:'
           cat /etc/nginx/conf.d/default.conf
-          sed -i -e "s/__PREFIX__/${PREFIX}/g" '/etc/nginx/conf.d/default.conf'
+          sed -i -e "s/__PREFIX__/\${PREFIX}/g" '/etc/nginx/conf.d/default.conf'
           echo 'After:'
           cat /etc/nginx/conf.d/default.conf
           exec nginx -g "daemon off;"