diff --git a/files/zh-cn/webassembly/understanding_the_text_format/index.md b/files/zh-cn/webassembly/understanding_the_text_format/index.md
index fc8768981f6698..9f7755d6cac9c4 100644
--- a/files/zh-cn/webassembly/understanding_the_text_format/index.md
+++ b/files/zh-cn/webassembly/understanding_the_text_format/index.md
@@ -120,6 +120,7 @@ WebAssembly 模块中的所有代码都是划分到函数里面。函数具有
 
 ```wasm
 (func (param $p i32)
+  (result i32)
   local.get $p
   local.get $p
   i32.add)