diff --git a/ui-grid/ui-grid.d.ts b/ui-grid/ui-grid.d.ts
index c6571435df..06d6314c03 100644
--- a/ui-grid/ui-grid.d.ts
+++ b/ui-grid/ui-grid.d.ts
@@ -1558,6 +1558,18 @@ declare module uiGrid {
              */
             (row: IGridRowOf<TEntity>): void;
         }
+        
+        /**
+         * GridRow settings for expandable
+         */
+        export interface IGridRow {
+            /**
+             * If set to true, the row is expanded and the expanded view is visible
+             * Defaults to false
+             * @default false
+             */
+            isExpanded?: boolean;
+        }
     }
 
     export module exporter {
@@ -3418,7 +3430,7 @@ declare module uiGrid {
     }
     export type IGridRow = IGridRowOf<any>;
     export interface IGridRowOf<TEntity> extends cellNav.IGridRow, edit.IGridRow, exporter.IGridRow, 
-        selection.IGridRow {
+        selection.IGridRow, expandable.IGridRow {
         /** A reference to an item in gridOptions.data[] */
         entity: TEntity;
         /** A reference back to the grid */