diff --git a/app/assets/javascripts/dashboard.js b/app/assets/javascripts/dashboard.js
index f260ef38..f1de68a3 100644
--- a/app/assets/javascripts/dashboard.js
+++ b/app/assets/javascripts/dashboard.js
@@ -78,7 +78,11 @@ $(function() {
                 var options = {};
                 options.fillColor = "rgba(255,255,255,0.0)";
                 options.strokeColor = conferences[i].color;
-                options.data = chart_data[conferences[i].short_title];
+                if(options.data == null || options.data.length == 0){
+                    options.data = [0];
+                }else{
+                    options.data = chart_data[conferences[i].short_title];
+                }
                 result.push(options)
             }
         }