diff --git a/lib/sql.js b/lib/sql.js
index cea7bea..42df8c9 100644
--- a/lib/sql.js
+++ b/lib/sql.js
@@ -1185,8 +1185,12 @@ SQLConnector.prototype.buildOrderBy = function(model, order) {
     return '';
   }
   var self = this;
-  if (typeof order === 'string') {
-    order = [order];
+  if (order === 'rand') {
+    return 'ORDER BY RAND()';
+  } else {
+    if (typeof order === 'string') {
+      order = [order];
+    }
   }
   var clauses = [];
   for (var i = 0, n = order.length; i < n; i++) {