diff --git a/src/vs/workbench/api/electron-browser/mainThreadTerminalService.ts b/src/vs/workbench/api/electron-browser/mainThreadTerminalService.ts
index 421daa0c9e4f3a3c6e3228f774dcd5578615fde2..242091da9b19d6b1e451e5b1bd0777c96e28af31 100644
--- a/src/vs/workbench/api/electron-browser/mainThreadTerminalService.ts
+++ b/src/vs/workbench/api/electron-browser/mainThreadTerminalService.ts
@@ -39,6 +39,10 @@ export class MainThreadTerminalService implements MainThreadTerminalServiceShape
 			this._onTerminalOpened(t);
 			t.processReady.then(() => this._onTerminalProcessIdReady(t));
 		});
+		const activeInstance = this.terminalService.getActiveInstance();
+		if (activeInstance) {
+			this._proxy.$acceptActiveTerminalChanged(activeInstance.id);
+		}
 	}
 
 	public dispose(): void {