diff --git a/core/Tracker/RequestSet.php b/core/Tracker/RequestSet.php
index cabcd56d496..d243f45504d 100644
--- a/core/Tracker/RequestSet.php
+++ b/core/Tracker/RequestSet.php
@@ -33,6 +33,10 @@ public function setRequests($requests)
     {
         $this->requests = array();
 
+        if (empty($requests)|| !is_array($requests)) {
+            return;
+        }
+        
         foreach ($requests as $request) {
             if (empty($request) && !is_array($request)) {
                 continue;