diff --git a/lib/scan.js b/lib/scan.js
index ad59bc1..ffc4aa1 100644
--- a/lib/scan.js
+++ b/lib/scan.js
@@ -162,6 +162,12 @@ Scan.prototype.exec = function(callback) {
   return utils.paginatedRequest(self, runScan, callback);
 };
 
+Scan.prototype.usingIndex = function (name) {
+  this.request.IndexName = name;
+
+  return this;
+};
+
 Scan.prototype.loadAll = function () {
   this.options.loadAll = true;