diff --git a/src/common/TestUtils.test.ts b/src/common/TestUtils.test.ts
index effe1ca5..58f6c709 100644
--- a/src/common/TestUtils.test.ts
+++ b/src/common/TestUtils.test.ts
@@ -121,13 +121,12 @@ export class MockLogService implements ILogService {
 export class MockOptionsService implements IOptionsService {
   public serviceBrand: any;
   public readonly rawOptions: ITerminalOptions = clone(DEFAULT_OPTIONS);
-  public options: ITerminalOptions = clone(DEFAULT_OPTIONS);
+  public options: ITerminalOptions = this.rawOptions;
   public onOptionChange: IEvent<string> = new EventEmitter<string>().event;
   constructor(testOptions?: Partial<ITerminalOptions>) {
     if (testOptions) {
       for (const key of Object.keys(testOptions)) {
-        this.rawOptions = testOptions[key];
-        this.options[key] = testOptions[key];
+        this.rawOptions[key] = testOptions[key];
       }
     }
   }