diff --git a/src/vs/workbench/contrib/terminal/browser/terminalInstance.ts b/src/vs/workbench/contrib/terminal/browser/terminalInstance.ts
index 84bde0d8006..b24312642f4 100644
--- a/src/vs/workbench/contrib/terminal/browser/terminalInstance.ts
+++ b/src/vs/workbench/contrib/terminal/browser/terminalInstance.ts
@@ -1459,23 +1459,22 @@ export class TerminalInstance extends Disposable implements ITerminalInstance {
 	}
 
 	private _onProcessData(ev: IProcessDataEvent): void {
-		const messageId = ++this._latestXtermWriteData;
 		if (ev.trackCommit) {
-			ev.writePromise = new Promise<void>(r => {
-				this.xterm?.raw.write(ev.data, () => {
-					this._latestXtermParseData = messageId;
-					this._processManager.acknowledgeDataEvent(ev.data.length);
-					r();
-				});
-			});
+			ev.writePromise = new Promise<void>(r => this._writeProcessData(ev, r));
 		} else {
-			this.xterm?.raw.write(ev.data, () => {
-				this._latestXtermParseData = messageId;
-				this._processManager.acknowledgeDataEvent(ev.data.length);
-			});
+			this._writeProcessData(ev);
 		}
 	}
 
+	private _writeProcessData(ev: IProcessDataEvent, cb?: () => void) {
+		const messageId = ++this._latestXtermWriteData;
+		this.xterm?.raw.write(ev.data, () => {
+			this._latestXtermParseData = messageId;
+			this._processManager.acknowledgeDataEvent(ev.data.length);
+			cb?.();
+		});
+	}
+
 	/**
 	 * Called when either a process tied to a terminal has exited or when a terminal renderer
 	 * simulates a process exiting (e.g. custom execution task).