diff --git a/run-document-server.sh b/run-document-server.sh
old mode 100644
new mode 100755
index 3f42949..a22c899
--- a/run-document-server.sh
+++ b/run-document-server.sh
@@ -15,7 +15,7 @@ CA_CERTIFICATES_PATH=${CA_CERTIFICATES_PATH:-${SSL_CERTIFICATES_DIR}/ca-certific
 SSL_DHPARAM_PATH=${SSL_DHPARAM_PATH:-${SSL_CERTIFICATES_DIR}/dhparam.pem}
 SSL_VERIFY_CLIENT=${SSL_VERIFY_CLIENT:-off}
 ONLYOFFICE_HTTPS_HSTS_ENABLED=${ONLYOFFICE_HTTPS_HSTS_ENABLED:-true}
-ONLYOFFICE_HTTPS_HSTS_MAXAGE=${ONLYOFFICE_HTTPS_HSTS_MAXAG:-31536000}
+ONLYOFFICE_HTTPS_HSTS_MAXAGE=${ONLYOFFICE_HTTPS_HSTS_MAXAGE:-31536000}
 SYSCONF_TEMPLATES_DIR="/app/onlyoffice/setup/config"
 
 NGINX_CONFD_PATH="/etc/nginx/conf.d";
@@ -182,28 +182,26 @@ update_nginx_settings(){
 
     # if dhparam path is valid, add to the config, otherwise remove the option
     if [ -r "${SSL_DHPARAM_PATH}" ]; then
-      sed 's,{{SSL_DHPARAM_PATH}},'"${SSL_DHPARAM_PATH}"',' -i ${NGINX_ONLYOFFICE_PATH}
+      sed 's,\(\#* *\)\?\(ssl_dhparam \).*\(;\)$,'"\2${SSL_DHPARAM_PATH}\3"',' -i ${NGINX_ONLYOFFICE_PATH}
     else
-      sed '/ssl_dhparam {{SSL_DHPARAM_PATH}};/d' -i ${NGINX_ONLYOFFICE_PATH}
+      sed '/ssl_dhparam/d' -i ${NGINX_ONLYOFFICE_PATH}
     fi
 
-    sed 's,{{SSL_VERIFY_CLIENT}},'"${SSL_VERIFY_CLIENT}"',' -i ${NGINX_ONLYOFFICE_PATH}
+    sed 's,\(ssl_verify_client \).*\(;\)$,'"\1${SSL_VERIFY_CLIENT}\2"',' -i ${NGINX_ONLYOFFICE_PATH}
 
     if [ -f "${CA_CERTIFICATES_PATH}" ]; then
-      sed 's,{{CA_CERTIFICATES_PATH}},'"${CA_CERTIFICATES_PATH}"',' -i ${NGINX_ONLYOFFICE_PATH}
-    else
-      sed '/{{CA_CERTIFICATES_PATH}}/d' -i ${NGINX_ONLYOFFICE_PATH}
+      sed '/ssl_verify_client/a '"ssl_client_certificate ${CA_CERTIFICATES_PATH}"';' -i ${NGINX_ONLYOFFICE_PATH}
     fi
 
     if [ "${ONLYOFFICE_HTTPS_HSTS_ENABLED}" == "true" ]; then
-      sed 's/{{ONLYOFFICE_HTTPS_HSTS_MAXAGE}}/'"${ONLYOFFICE_HTTPS_HSTS_MAXAGE}"'/' -i ${NGINX_ONLYOFFICE_PATH}
+      sed 's,\(max-age=\).*\(;\)$,'"\1${ONLYOFFICE_HTTPS_HSTS_MAXAGE}\2"',' -i ${NGINX_ONLYOFFICE_PATH}
     else
-      sed '/{{ONLYOFFICE_HTTPS_HSTS_MAXAGE}}/d' -i ${NGINX_ONLYOFFICE_PATH}
+      sed '/max-age=/d' -i ${NGINX_ONLYOFFICE_PATH}
     fi
   else
     cp ${NGINX_CONFD_PATH}/onlyoffice-documentserver.conf.template ${NGINX_ONLYOFFICE_PATH}
   fi
-  
+
   if [ -f "${NGINX_ONLYOFFICE_EXAMPLE_PATH}" ]; then
     sed 's/linux/docker/' -i ${NGINX_ONLYOFFICE_EXAMPLE_PATH}
   fi