diff --git a/content/docs/best_practices/extensions.md b/content/docs/best_practices/extensions.md
index 24e280f..8c534aa 100644
--- a/content/docs/best_practices/extensions.md
+++ b/content/docs/best_practices/extensions.md
@@ -12,7 +12,7 @@ Extensions are small helper utilities shipped with Colly. List of plugins is ava
 
 ## Usage
 
-The following example enables the random User-Agent switcher and the Referrer setter extension and visits httpbin.org twice.
+The following example enables the random User-Agent switcher and the Referer setter extension and visits httpbin.org twice.
 
 ```go
 import (
@@ -27,7 +27,7 @@ func main() {
     visited := false
 
     extensions.RandomUserAgent(c)
-    extensions.Referrer(c)
+    extensions.Referer(c)
 
     c.OnResponse(func(r *colly.Response) {
         log.Println(string(r.Body))