diff --git a/aio/content/guide/testing.md b/aio/content/guide/testing.md
index c3dead9ba1..4fd661ae45 100644
--- a/aio/content/guide/testing.md
+++ b/aio/content/guide/testing.md
@@ -1288,7 +1288,7 @@ In this example, we have a new macro task (nested setTimeout), by default, when
   region="fake-async-test-tick-new-macro-task-async">
 </code-example>
 
-And in some case, we don't want to trigger the new maco task when ticking, we can use `tick(milliseconds, {processNewMacroTasksSynchronously: false})` to not invoke new maco task.
+And in some case, we don't want to trigger the new macro task when ticking, we can use `tick(milliseconds, {processNewMacroTasksSynchronously: false})` to not invoke new maco task.
 
 #### Comparing dates inside fakeAsync()