diff --git a/src/components/datatable/DataTable.d.ts b/src/components/datatable/DataTable.d.ts
index 86ad3fbe9..d2996f5ec 100644
--- a/src/components/datatable/DataTable.d.ts
+++ b/src/components/datatable/DataTable.d.ts
@@ -38,6 +38,10 @@ export declare class DataTable extends Vue {
     expandedRows?: any[];
     expandedRowIcon?: string;
     collapsedRowIcon?: string;
+    rowGroupMode?: string;
+    groupRowsBy?: string[]|string;
+    expandableRowGroups?: boolean;
+    expandedRowGroups?: any[];
     $emit(eventName: 'page', event: Event): this;
     $emit(eventName: 'sort', event: Event): this;
     $emit(eventName: 'filter', event: Event): this;