diff --git a/docs/topics/asyncio.rst b/docs/topics/asyncio.rst
index 7aa83f505..d46527cfc 100644
--- a/docs/topics/asyncio.rst
+++ b/docs/topics/asyncio.rst
@@ -99,7 +99,7 @@ Futures. Scrapy provides two helpers for this:
 
 
 Async additional requests
-=====================
+=========================
 
 The spider below shows a single use-case of scraping page and gathering price from a separate url::