diff --git a/root/etc/cont-init.d/50-config b/root/etc/cont-init.d/50-config
index 466810f..f1d925f 100644
--- a/root/etc/cont-init.d/50-config
+++ b/root/etc/cont-init.d/50-config
@@ -92,7 +92,7 @@ if ! grep -q 'PARAMETERS' "/config/nginx/dhparams.pem"; then
 fi
 
 # check to make sure DNSPLUGIN is selected if dns validation is used
-[[ "$VALIDATION" = "dns" ]] && [[ ! "$DNSPLUGIN" =~ ^(aliyun|cloudflare|cloudxns|cpanel|digitalocean|dnsimple|dnsmadeeasy|domeneshop|gandi|google|inwx|linode|luadns|nsone|ovh|rfc2136|route53|transip|netcup)$ ]] && \
+[[ "$VALIDATION" = "dns" ]] && [[ ! "$DNSPLUGIN" =~ ^(aliyun|cloudflare|cloudxns|cpanel|digitalocean|dnsimple|dnsmadeeasy|domeneshop|gandi|google|inwx|linode|luadns|netcup|nsone|ovh|rfc2136|route53|transip)$ ]] && \
   echo "Please set the DNSPLUGIN variable to a valid plugin name. See docker info for more details." && \
   sleep infinity