diff --git a/Dockerfile b/Dockerfile
index 31f3d5d88f9bac1c8383e366094323be09fccd77..432e939e816d2d2e249cb97819ed93386a149da4 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -29,4 +29,4 @@ RUN rm -f /etc/nginx/nginx.conf
 # test validity of nginx configuration
 #RUN nginx -t
 
-ENTRYPOINT ["nginx", "-c", "$FRONTEND_NGINX_CONFIG"]
+ENTRYPOINT nginx -c $FRONTEND_NGINX_CONFIG