diff --git a/Dockerfile b/Dockerfile
index b7bef93..44bf191 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -5,7 +5,8 @@ RUN apt-get update && \
     DEBIAN_FRONTEND=noninteractive apt-get install -q -y cron sudo automysqlbackup
 
 COPY mysql.cnf /etc/mysql/mariadb.conf.d/settings.cnf
-RUN chown mysql:mysql /etc/mysql/mariadb.conf.d/settings.cnf
+COPY custom.cnf /etc/mysql/mariadb.conf.d/custom.cnf
+RUN chown mysql:mysql /etc/mysql/mariadb.conf.d/custom.cnf
 COPY docker-entrypoint.sh /usr/local/bin/
 COPY healthcheck.sh /usr/local/bin/
 COPY automysqlbackup /etc/default
diff --git a/custom.cnf b/custom.cnf
new file mode 100644
index 0000000..55797f5
--- /dev/null
+++ b/custom.cnf
@@ -0,0 +1,4 @@
+[mysqld]
+server_id=33
+replicate-do-db=
+read-only 
\ No newline at end of file
diff --git a/docker-entrypoint.sh b/docker-entrypoint.sh
index 4b502e8..73f0979 100755
--- a/docker-entrypoint.sh
+++ b/docker-entrypoint.sh
@@ -330,13 +330,14 @@ if ! _is_sourced; then
 	SERVER_ID=${SERVER_ID:-33}
 	READONLY=${READONLY:-1}
 
-	cat >>/etc/mysql/mariadb.conf.d/settings.cnf <<EOF
-server_id = ${SERVER_ID}
-replicate-do-db = ${REPLICATE_DO_DB}
+	cat >/etc/mysql/mariadb.conf.d/custom.cnf <<EOF
+[mysqld]
+server_id=${SERVER_ID}
+replicate-do-db=${REPLICATE_DO_DB}
 EOF
 
 	if [ "$READONLY" = "1" ] ; then
-		echo "read-only" >> /etc/mysql/mariadb.conf.d/settings.cnf
+		echo "read-only" >> /etc/mysql/mariadb.conf.d/custom.cnf
 	fi
 	
   sudo service cron start