diff --git a/docs/en/latest/architecture-design/apisix.md b/docs/en/latest/architecture-design/apisix.md
index 0f6824cacd00..48b15129ec92 100644
--- a/docs/en/latest/architecture-design/apisix.md
+++ b/docs/en/latest/architecture-design/apisix.md
@@ -46,6 +46,6 @@ The diagram below shows how APISIX handles an incoming request and applies corre
 
 ## Plugin hierarchy
 
-The chart below shows the order in which different types of Plugin are applied to a request:
+The chart below shows the order in which different Plugin phases are applied to a request:
 
 ![flow-plugin-internal](https://raw.githubusercontent.com/apache/apisix/master/docs/assets/images/flow-plugin-internal.png)