diff --git a/Dockerfiles/web-apache-mysql/centos/Dockerfile b/Dockerfiles/web-apache-mysql/centos/Dockerfile
index a948399f6..9e3e4845a 100644
--- a/Dockerfiles/web-apache-mysql/centos/Dockerfile
+++ b/Dockerfiles/web-apache-mysql/centos/Dockerfile
@@ -1,4 +1,4 @@
-# syntax=docker/dockerfile:1c
+# syntax=docker/dockerfile:1
 ARG MAJOR_VERSION=7.0
 ARG ZBX_VERSION=${MAJOR_VERSION}
 ARG BUILD_BASE_IMAGE=zabbix-build-mysql:centos-${ZBX_VERSION}