diff --git a/spec/text-editor-component-spec.js b/spec/text-editor-component-spec.js
index d8528a460..b2a2ba8c3 100644
--- a/spec/text-editor-component-spec.js
+++ b/spec/text-editor-component-spec.js
@@ -34,6 +34,12 @@ describe('TextEditorComponent', () => {
   it('renders lines and line numbers for the visible region', async () => {
     const {component, element, editor} = buildComponent({rowsPerTile: 3})
 
+    // TODO: An extra update is caused by marker layer events being asynchronous,
+    // so the cursor getting added triggers an update even though we created
+    // the component after this occurred. We should make marker layer events
+    // synchronous and batched on the transaction.
+    await component.getNextUpdatePromise()
+
     expect(element.querySelectorAll('.line-number').length).toBe(13)
     expect(element.querySelectorAll('.line').length).toBe(13)