diff --git a/nodes/xilica-listen.html b/nodes/xilica-listen.html
index bb08c5c..58f364f 100644
--- a/nodes/xilica-listen.html
+++ b/nodes/xilica-listen.html
@@ -19,6 +19,16 @@ RED.nodes.registerType('xilica-listen', {
   oneditprepare: function () {
     var node = this;
     var rules = node.rules || [];
+    if (typeof rules === "string") {
+      try {
+        rules = JSON.parse(rules);
+      } catch (e) {
+        rules = [];
+      }
+    }
+    if (!Array.isArray(rules)) {
+      rules = [];
+    }
 
     $("#node-input-rules").editableList({
       addItem: function (container, index, rule) {
diff --git a/nodes/xilica-subscribe.html b/nodes/xilica-subscribe.html
index 5ca36e5..7244690 100644
--- a/nodes/xilica-subscribe.html
+++ b/nodes/xilica-subscribe.html
@@ -22,6 +22,16 @@ RED.nodes.registerType('xilica-subscribe', {
   oneditprepare: function () {
     var node = this;
     var rules = node.rules || [];
+    if (typeof rules === "string") {
+      try {
+        rules = JSON.parse(rules);
+      } catch (e) {
+        rules = [];
+      }
+    }
+    if (!Array.isArray(rules)) {
+      rules = [];
+    }
 
     $("#node-input-rules").editableList({
       addItem: function (container, index, rule) {