diff --git a/src/vs/workbench/api/browser/mainThreadTerminalService.ts b/src/vs/workbench/api/browser/mainThreadTerminalService.ts
index e913ce5323d..81a63841a71 100644
--- a/src/vs/workbench/api/browser/mainThreadTerminalService.ts
+++ b/src/vs/workbench/api/browser/mainThreadTerminalService.ts
@@ -22,7 +22,7 @@ export class MainThreadTerminalService implements MainThreadTerminalServiceShape
 	private _proxy: ExtHostTerminalServiceShape;
 	private _remoteAuthority: string | null;
 	private readonly _toDispose = new DisposableStore();
-	private readonly _terminalProcesses = new Map<number, Promise<ITerminalProcessExtHostProxy>>();
+	private readonly _terminalProcessProxies = new Map<number, ITerminalProcessExtHostProxy>();
 	private _dataEventTracker: TerminalDataEventTracker | undefined;
 	private _linkHandler: IDisposable | undefined;
 
@@ -230,7 +230,7 @@ export class MainThreadTerminalService implements MainThreadTerminalServiceShape
 		}
 
 		const proxy = request.proxy;
-		this._terminalProcesses.set(proxy.terminalId, Promise.resolve(proxy));
+		this._terminalProcessProxies.set(proxy.terminalId, proxy);
 		const shellLaunchConfigDto: IShellLaunchConfigDto = {
 			name: request.shellLaunchConfig.name,
 			executable: request.shellLaunchConfig.executable,
@@ -258,7 +258,7 @@ export class MainThreadTerminalService implements MainThreadTerminalServiceShape
 
 	private _onRequestStartExtensionTerminal(request: IStartExtensionTerminalRequest): void {
 		const proxy = request.proxy;
-		this._terminalProcesses.set(proxy.terminalId, Promise.resolve(proxy));
+		this._terminalProcessProxies.set(proxy.terminalId, proxy);
 
 		// Note that onReisze is not being listened to here as it needs to fire when max dimensions
 		// change, excluding the dimension override
@@ -280,38 +280,38 @@ export class MainThreadTerminalService implements MainThreadTerminalServiceShape
 	}
 
 	public $sendProcessTitle(terminalId: number, title: string): void {
-		this._getTerminalProcess(terminalId).then(e => e.emitTitle(title));
+		this._getTerminalProcess(terminalId).emitTitle(title);
 	}
 
 	public $sendProcessData(terminalId: number, data: string): void {
-		this._getTerminalProcess(terminalId).then(e => e.emitData(data));
+		this._getTerminalProcess(terminalId).emitData(data);
 	}
 
 	public $sendProcessReady(terminalId: number, pid: number, cwd: string): void {
-		this._getTerminalProcess(terminalId).then(e => e.emitReady(pid, cwd));
+		this._getTerminalProcess(terminalId).emitReady(pid, cwd);
 	}
 
 	public $sendProcessExit(terminalId: number, exitCode: number | undefined): void {
-		this._getTerminalProcess(terminalId).then(e => e.emitExit(exitCode));
-		this._terminalProcesses.delete(terminalId);
+		this._getTerminalProcess(terminalId).emitExit(exitCode);
+		this._terminalProcessProxies.delete(terminalId);
 	}
 
 	public $sendOverrideDimensions(terminalId: number, dimensions: ITerminalDimensions | undefined): void {
-		this._getTerminalProcess(terminalId).then(e => e.emitOverrideDimensions(dimensions));
+		this._getTerminalProcess(terminalId).emitOverrideDimensions(dimensions);
 	}
 
 	public $sendProcessInitialCwd(terminalId: number, initialCwd: string): void {
-		this._getTerminalProcess(terminalId).then(e => e.emitInitialCwd(initialCwd));
+		this._getTerminalProcess(terminalId).emitInitialCwd(initialCwd);
 	}
 
 	public $sendProcessCwd(terminalId: number, cwd: string): void {
-		this._getTerminalProcess(terminalId).then(e => e.emitCwd(cwd));
+		this._getTerminalProcess(terminalId).emitCwd(cwd);
 	}
 
 	public $sendResolvedLaunchConfig(terminalId: number, shellLaunchConfig: IShellLaunchConfig): void {
 		const instance = this._terminalService.getInstanceFromId(terminalId);
 		if (instance) {
-			this._getTerminalProcess(terminalId).then(e => e.emitResolvedShellLaunchConfig(shellLaunchConfig));
+			this._getTerminalProcess(terminalId).emitResolvedShellLaunchConfig(shellLaunchConfig);
 		}
 	}
 
@@ -324,7 +324,7 @@ export class MainThreadTerminalService implements MainThreadTerminalServiceShape
 			sw.stop();
 			sum += sw.elapsed();
 		}
-		this._getTerminalProcess(terminalId).then(e => e.emitLatency(sum / COUNT));
+		this._getTerminalProcess(terminalId).emitLatency(sum / COUNT);
 	}
 
 	private _isPrimaryExtHost(): boolean {
@@ -349,8 +349,8 @@ export class MainThreadTerminalService implements MainThreadTerminalServiceShape
 		}
 	}
 
-	private _getTerminalProcess(terminalId: number): Promise<ITerminalProcessExtHostProxy> {
-		const terminal = this._terminalProcesses.get(terminalId);
+	private _getTerminalProcess(terminalId: number): ITerminalProcessExtHostProxy {
+		const terminal = this._terminalProcessProxies.get(terminalId);
 		if (!terminal) {
 			throw new Error(`Unknown terminal: ${terminalId}`);
 		}