diff --git a/website/docs/guide/ip-address.md b/website/docs/guide/ip-address.md
index 9094a044..ac0c7639 100644
--- a/website/docs/guide/ip-address.md
+++ b/website/docs/guide/ip-address.md
@@ -77,8 +77,10 @@ E.g.:
 
 ```go
 e.IPExtractor = echo.ExtractIPFromXFFHeader(
-	TrustLinkLocal(false),
-	TrustIPRanges(lbIPRange),
+     echo.TrustLoopback(false), // e.g. ipv4 start with 127. 
+     echo.TrustLinkLocal(false), // e.g. ipv4 start with 169.254
+     echo.TrustPrivateNet(false), // e.g. ipv4 start with 10. or 192.168
+     echo.TrustIPRange(lbIPRange),
 )
 ```
 
@@ -106,4 +108,4 @@ Again, it trusts internal IP addresses by default (loopback, link-local unicast,
 In default behavior, Echo sees all of first XFF header, X-Real-IP header and IP from network layer.
 
 As you might already notice, after reading this article, this is not good.
-Sole reason this is default is just backward compatibility.
\ No newline at end of file
+Sole reason this is default is just backward compatibility.