diff --git a/editor/js/ui/deploy.js b/editor/js/ui/deploy.js
index c8fad80d2..310a0b880 100644
--- a/editor/js/ui/deploy.js
+++ b/editor/js/ui/deploy.js
@@ -138,7 +138,12 @@ RED.deploy = (function() {
         }
         var label = "";
         if (typeof node._def.label == "function") {
-            label = node._def.label.call(node);
+            try {
+                label = node._def.label.call(node);
+            } catch(err) {
+                console.log("Definition error: "+node_def.type+".label",err);
+                label = node_def.type;
+            }
         } else {
             label = node._def.label;
         }
diff --git a/editor/js/ui/tab-config.js b/editor/js/ui/tab-config.js
index c22bde1f4..c1bfaf943 100644
--- a/editor/js/ui/tab-config.js
+++ b/editor/js/ui/tab-config.js
@@ -133,7 +133,13 @@ RED.sidebar.config = (function() {
             nodes.forEach(function(node) {
                 var label = "";
                 if (typeof node._def.label == "function") {
-                    label = node._def.label.call(node);
+                    try {
+                        label = node._def.label.call(node);
+                    } catch(err) {
+                        console.log("Definition error: "+node_def.type+".label",err);
+                        label = node_def.type;
+                    }
+
                 } else {
                     label = node._def.label;
                 }