diff --git a/static/rbmd/script.js b/static/rbmd/script.js
index e1a379a..5f91356 100644
--- a/static/rbmd/script.js
+++ b/static/rbmd/script.js
@@ -68,7 +68,7 @@ function displayData(a){
   $("#statusContainer:contains('resizing')").css("background-color", "#ff9800");
   $("#statusContainer:contains('deadly')").css("background-color", "#f44336");;
   // if (node2 != undefined) {
-    var one = a.quorum.map(function(item) {return item.node});
+    var one = a.quorum.map(function(item) {return item.node}) || undefined;
     var two = node2.quorum.map(function(item) {return item.node});
     if (JSON.stringify(one) != JSON.stringify(two)) {
       node2 = a;