diff --git a/docs/en/src/custom_scalars.md b/docs/en/src/custom_scalars.md
index 7565269f..38ce23e8 100644
--- a/docs/en/src/custom_scalars.md
+++ b/docs/en/src/custom_scalars.md
@@ -19,7 +19,7 @@ impl ScalarType for StringNumber {
             Ok(value.parse().map(StringNumber)?)
         } else {
             // If the type does not match
-            Err(InputValueError::ExpectedType(value))
+            Err(InputValueError::expected_type(value))
         }
     }
 
diff --git a/docs/zh-CN/src/custom_scalars.md b/docs/zh-CN/src/custom_scalars.md
index 2c7e4ca4..71e15df5 100644
--- a/docs/zh-CN/src/custom_scalars.md
+++ b/docs/zh-CN/src/custom_scalars.md
@@ -20,7 +20,7 @@ impl ScalarType for StringNumber {
             Ok(value.parse().map(StringNumber)?)
         } else {
             // 类型不匹配
-            Err(InputValueError::ExpectedType(value))
+            Err(InputValueError::expected_type(value))
         }
     }