diff --git a/types/kendo-ui/index.d.ts b/types/kendo-ui/index.d.ts
index e734f52cfa..95e279ea7d 100644
--- a/types/kendo-ui/index.d.ts
+++ b/types/kendo-ui/index.d.ts
@@ -4311,7 +4311,7 @@ declare namespace kendo.ui {
         scrollable?: boolean | GridScrollable;
         selectable?: boolean|string;
         sortable?: boolean | GridSortable;
-        toolbar?: GridToolbarItem[];
+        toolbar?: string|Function|(string|GridToolbarItem)[];
         beforeEdit?(e: GridBeforeEditEvent): void;
         cancel?(e: GridCancelEvent): void;
         cellClose?(e: GridCellCloseEvent): void;