diff --git a/tests/PHPUnit/Framework/Fixture.php b/tests/PHPUnit/Framework/Fixture.php
index e2e1890fc9e87c89c814e5687be9dcdcd0e1b219..a048dad5167d469a299585d7af6585b60231edac 100644
--- a/tests/PHPUnit/Framework/Fixture.php
+++ b/tests/PHPUnit/Framework/Fixture.php
@@ -488,7 +488,9 @@ class Fixture extends \PHPUnit_Framework_Assert
         $piwikUrl = str_replace("https://", "http://", $piwikUrl);
 
         // append REQUEST_URI (eg. when Piwik runs at http://localhost/piwik/)
-        $piwikUrl .= $piwikUri;
+        if($piwikUri != '/') {
+            $piwikUrl .= $piwikUri;
+        }
 
         return $piwikUrl;
     }