diff --git a/wordpress-jail.sh b/wordpress-jail.sh
index 75ee049..d04729c 100755
--- a/wordpress-jail.sh
+++ b/wordpress-jail.sh
@@ -85,6 +85,11 @@ if [ -z "${TIME_ZONE}" ]; then
   exit 1
 fi
 
+if [ -n "${FILES_PATH}" ] || [ -n "${DB_PATH}" ]; then
+  print_err 'Configuration error: WP_ROOT replaces FILES_PATH and DB_PATH in newer script versions. Update ${CONFIG_NAME} and run the script again.'
+  exit 1
+fi
+
 DB_PATH=${POOL_PATH}${WP_ROOT%/}/db
 FILES_PATH=${POOL_PATH}${WP_ROOT%/}/files