diff --git a/certbot/certbot.sh b/certbot/certbot.sh
index 903c076..735d85f 100644
--- a/certbot/certbot.sh
+++ b/certbot/certbot.sh
@@ -18,10 +18,11 @@ if [ "$CERTBOT_TEST_CERT" != "0" ]; then
   test_cert_arg="--test-cert"
 fi
 
-domains_fixed=$(echo "$DOMAINS" | tr -d \")
+domains_fixed=$(echo "$DOMAINS $DOMAINS_EXTRA" | tr -d \")
 domain_list=($domains_fixed)
 emails_fixed=$(echo "$CERTBOT_EMAILS" | tr -d \")
 emails_list=($emails_fixed)
+
 for i in "${!domain_list[@]}"; do
   domain="${domain_list[i]}"