diff --git a/editor/js/tools/menus/selectmenu.js b/editor/js/tools/menus/selectmenu.js
index 28d06a09b9d3cad94d3c6deb607ddbd61de70998..dab340eb6388a7c50ef2845098b1bf9a6aea2b21 100644
--- a/editor/js/tools/menus/selectmenu.js
+++ b/editor/js/tools/menus/selectmenu.js
@@ -185,7 +185,7 @@ export class SelectMenu extends ToolMenu {
             var value = node[propertyKey];
 
             var formattedValue = undefined;
-            if (propertyKey === Graph.NODE_REFERENCES) {
+            if (propertyKey === Graph.NODE_REFERENCES && Array.isArray(value)) {
                 formattedValue = value.join("\n");
             } else {
                 formattedValue = value;