diff --git a/lib/datasource.js b/lib/datasource.js
index 774362c7..34f40e0b 100644
--- a/lib/datasource.js
+++ b/lib/datasource.js
@@ -647,7 +647,8 @@ DataSource.prototype.getModelDefinition = function (name) {
  * ['rest'], or ['db', 'rdbms', 'mysql']
  */
 DataSource.prototype.getTypes = function () {
-  var types = this.connector && this.connector.getTypes() || [];
+  var getTypes = this.connector && this.connector.getTypes;
+  var types = getTypes && getTypes() || [];
   if (typeof types === 'string') {
     types = types.split(/[\s,\/]+/);
   }