diff --git a/src/vs/workbench/api/common/extHost.api.impl.ts b/src/vs/workbench/api/common/extHost.api.impl.ts
index 66fe037cc20..8a34a9e8919 100644
--- a/src/vs/workbench/api/common/extHost.api.impl.ts
+++ b/src/vs/workbench/api/common/extHost.api.impl.ts
@@ -1377,6 +1377,8 @@ export function createApiFactoryAndRegisterActors(accessor: ServicesAccessor): I
 
 		// namespace: interactive
 		const interactive: typeof vscode.interactive = {
+			// TODO Can be deleted after another Insiders
+			_version: 1,
 			transferActiveChat(toWorkspace: vscode.Uri) {
 				checkProposedApiEnabled(extension, 'interactive');
 				return extHostChatAgents2.transferActiveChat(toWorkspace);
diff --git a/src/vscode-dts/vscode.proposed.interactive.d.ts b/src/vscode-dts/vscode.proposed.interactive.d.ts
index d6c4c7b5296..472f013cca3 100644
--- a/src/vscode-dts/vscode.proposed.interactive.d.ts
+++ b/src/vscode-dts/vscode.proposed.interactive.d.ts
@@ -6,6 +6,8 @@
 declare module 'vscode' {
 
 	export namespace interactive {
+		// Can be deleted after another insiders
+		export const _version: number;
 		export function transferActiveChat(toWorkspace: Uri): void;
 	}
 }