diff --git a/public/docs/ts/latest/guide/setup.jade b/public/docs/ts/latest/guide/setup.jade
index 937fafbe48..aecbad27ac 100644
--- a/public/docs/ts/latest/guide/setup.jade
+++ b/public/docs/ts/latest/guide/setup.jade
@@ -134,7 +134,7 @@ block core-files
   :marked
     Focus on the following three TypeScript (`.ts`) files in the **`/src`** folder.
 
-    注意**`/app`**目录中以下三个 TypeScript (`.ts`) 文件：
+    注意**`/src`**目录中以下三个 TypeScript (`.ts`) 文件：
     
   .filetree
     .file src