diff --git a/src/vs/workbench/api/common/extHostApiCommands.ts b/src/vs/workbench/api/common/extHostApiCommands.ts
index 6fc82ebf63e7c80d6654b04b32d2c038eb41c639..637ef3af85c331603c6bc4d4e15f410a1de77e79 100644
--- a/src/vs/workbench/api/common/extHostApiCommands.ts
+++ b/src/vs/workbench/api/common/extHostApiCommands.ts
@@ -393,6 +393,9 @@ export class ExtHostApiCommands {
 
 	// --- command impl
 
+	/**
+	 * @deprecated use the ApiCommand instead
+	 */
 	private _register(id: string, handler: (...args: any[]) => any, description?: ICommandHandlerDescription): void {
 		const disposable = this._commands.registerCommand(false, id, handler, this, description);
 		this._disposables.add(disposable);