diff --git a/lib/cursor.js b/lib/cursor.js
index 92448be..6aa518b 100644
--- a/lib/cursor.js
+++ b/lib/cursor.js
@@ -126,6 +126,10 @@ var Cursor = module.exports = function(documents, opts) {
     rewind: function () {
       i = 0;
     },
+    
+    setReadPreference: function () {
+      return this;
+    },
 
     size: function(callback) {
       return this.count(true, callback);