diff --git a/projects/common/src/fm/models/item.ts b/projects/common/src/fm/models/item.ts
index 3e5dd27..acb3c4d 100644
--- a/projects/common/src/fm/models/item.ts
+++ b/projects/common/src/fm/models/item.ts
@@ -5,7 +5,7 @@ export interface IItem extends IListItem {
     geometry?: any;
     tags:string[],
     data?:any
-    isEditable:boolean;
+    isEditable?:boolean;
 }
 
 export class Item implements IItem {
@@ -23,7 +23,7 @@ export class Item implements IItem {
   public size?: number;
   public state?: number;
   public data?:any;
-  public isEditable:boolean;
+  public isEditable?:boolean;
 
   constructor() {  
   }