diff --git a/docs/zh-CN/src/input_value_validators.md b/docs/zh-CN/src/input_value_validators.md
index 9a43f77b..408ab368 100644
--- a/docs/zh-CN/src/input_value_validators.md
+++ b/docs/zh-CN/src/input_value_validators.md
@@ -44,7 +44,7 @@ impl Query {
 ```rust
 struct MustBeZero {}
 
-impl InputValueValidator for InputValueValidator {
+impl InputValueValidator for MustBeZero {
     fn is_valid(&self, value: &Value) -> Option<String> {
         if let Value::Int(n) = value {
             if n.as_i64().unwrap() != 0 {