diff --git a/guides/using-component-harnesses.md b/guides/using-component-harnesses.md
index 5b7b7fe09566..9321a50a55f2 100644
--- a/guides/using-component-harnesses.md
+++ b/guides/using-component-harnesses.md
@@ -130,7 +130,7 @@ it('should work', async () => {
   const cancel = await loader.getHarness(MatButtonHarness.with({text: 'Cancel'}));
   // Harness for mat-button with class 'confirm' and whose text is either 'Ok' or 'Okay'.
   const okButton = await loader.getHarness(
-      MatButtonHarness.with({selector: '.confirm', text: /^(Ok|Okay)$/})
+      MatButtonHarness.with({selector: '.confirm', text: /^(Ok|Okay)$/}));
 });
 ```