diff --git a/scripts/upgrade b/scripts/upgrade
index a59d8c0..24a8fc4 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -45,11 +45,6 @@ elif [ -n "${dns_over_https:-}" ] || [ "${dns_over_https:-}" = false ]; then
 	ynh_app_setting_set --app="$app" --key=dns_over_https --value=$dns_over_https
 fi
 
-# if the DNS port is not 53, make sure it is
-if ! [ "$(ynh_read_var_in_file --file="$install_dir/AdGuardHome.yaml" --key="port" --after="dns")" == "53" ]; then
-	ynh_write_var_in_file --file="$install_dir/AdGuardHome.yaml" --key="port" --after="dns" --value="53"
-fi
-
 # about all those 'ynh_write_var_in_file':
 # AGH modifies by itself the config file when an user modifies it using the front-end
 # so if we're using 'ynh_add_config' to process the config file, each
@@ -85,6 +80,11 @@ fi
 # PROCESS OPENING/CLOSING PORTS
 #=================================================
 
+# if the DNS port in the AGH config is not 53, make sure it is...
+if ! [ "$(ynh_read_var_in_file --file="$install_dir/AdGuardHome.yaml" --key="port" --after="dns")" == "53" ]; then
+	ynh_write_var_in_file --file="$install_dir/AdGuardHome.yaml" --key="port" --after="dns" --value="53"
+fi
+
 # if the port 53 is not open, open it, it's mandatory to use AGH
 if ! yunohost firewall list | grep -q " 53$"; then
     ynh_print_info --message="Opening port 53..."