diff --git a/Dockerfile b/Dockerfile
index 6e9a8d3..8ea0cb3 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -3,7 +3,7 @@ ARG BASE_VERSION=24.04
 ARG BASE_IMAGE=ubuntu:$BASE_VERSION
 
 FROM ${BASE_IMAGE} AS documentserver
-LABEL maintainer Ascensio System SIA <support@onlyoffice.com>
+LABEL maintainer="Ascensio System SIA <support@onlyoffice.com>"
 
 ARG BASE_VERSION
 ARG PG_VERSION=16