diff --git a/docs/source/en/basics/controller.md b/docs/source/en/basics/controller.md
index 092b04a6f3..01e3b16a13 100644
--- a/docs/source/en/basics/controller.md
+++ b/docs/source/en/basics/controller.md
@@ -543,7 +543,7 @@ class PostController extends Controller {
     const userId = ctx.session.userId;
     const posts = await ctx.service.post.fetch(userId);
     // set value to Session
-    ctx.session.visited = ctx.session.visited ? ctx.session.visited++ : 1;
+    ctx.session.visited = ctx.session.visited ? ++ctx.session.visited : 1;
     ctx.body = {
       success: true,
       posts,
diff --git a/docs/source/zh-cn/basics/controller.md b/docs/source/zh-cn/basics/controller.md
index b6ee60c768..a90763401f 100644
--- a/docs/source/zh-cn/basics/controller.md
+++ b/docs/source/zh-cn/basics/controller.md
@@ -545,7 +545,7 @@ class PostController extends Controller {
     const userId = ctx.session.userId;
     const posts = await ctx.service.post.fetch(userId);
     // 修改 Session 的值
-    ctx.session.visited = ctx.session.visited ? ctx.session.visited++ : 1;
+    ctx.session.visited = ctx.session.visited ? ++ctx.session.visited : 1;
     ctx.body = {
       success: true,
       posts,