diff --git a/src/vs/workbench/contrib/notebook/browser/contrib/coreActions.ts b/src/vs/workbench/contrib/notebook/browser/contrib/coreActions.ts
index 7e75b1cb635ae6e0500cdfe0ddbeee169094c135..bf09ffee3b1d971ea28b6e58c11a6ff1ddcd644b 100644
--- a/src/vs/workbench/contrib/notebook/browser/contrib/coreActions.ts
+++ b/src/vs/workbench/contrib/notebook/browser/contrib/coreActions.ts
@@ -1494,7 +1494,7 @@ registerAction2(class extends NotebookCellAction {
 	}
 
 	async runWithContext(accessor: ServicesAccessor, context: INotebookCellActionContext): Promise<void> {
-		context.notebookEditor.viewModel!.notebookDocument.changeCellMetadata(context.cell.handle, { inputCollapsed: false });
+		context.notebookEditor.viewModel!.notebookDocument.changeCellMetadata(context.cell.handle, { outputCollapsed: false });
 	}
 });