diff --git a/include/testResults.php b/include/testResults.php
index 4550c8c..dc1bfd2 100644
--- a/include/testResults.php
+++ b/include/testResults.php
@@ -446,7 +446,7 @@ class testData{
     }
 
     // show the fields for editing
-    function OutputEditor($sDistribution, $bNewDist=false)
+    function OutputEditor($sDistribution="", $bNewDist=false)
     {
         HtmlAreaLoaderScript(array("Test1", "Test2", "Test3"));