diff --git a/UI/WebServerResources/SchedulerUI.js b/UI/WebServerResources/SchedulerUI.js
index 267529682..fc274c444 100644
--- a/UI/WebServerResources/SchedulerUI.js
+++ b/UI/WebServerResources/SchedulerUI.js
@@ -686,7 +686,10 @@ function tasksListCallback(http) {
                 var selectedNodesId = http.callbackData;
                 for (var i = 0; i < selectedNodesId.length; i++) {
                     // 	log(selectedNodesId[i] + " (" + i + ") is selected");
-                    $(selectedNodesId[i]).selectElement();
+                    var node = $(selectedNodesId[i]);
+                    if (node) {
+                        node.selectElement();
+                    }
                 }
             }
             else