diff --git a/typescript/widget/multitree/multi.tree.combo.ts b/typescript/widget/multitree/multi.tree.combo.ts
index fd6bbd098..461d3d822 100644
--- a/typescript/widget/multitree/multi.tree.combo.ts
+++ b/typescript/widget/multitree/multi.tree.combo.ts
@@ -1,7 +1,7 @@
 import { Single } from "../../base/single/single";
 
 export declare class MultiTreeCombo extends Single {
-    static xytpe: string;
+    static xtype: string;
     static EVENT_FOCUS: string;
     static EVENT_BLUR: string;
     static EVENT_STOP: string;