diff --git a/src/v1/chat_completion.rs b/src/v1/chat_completion.rs
index a5a6aed..1592bbc 100644
--- a/src/v1/chat_completion.rs
+++ b/src/v1/chat_completion.rs
@@ -181,7 +181,7 @@ pub enum JSONSchemaType {
     Boolean,
 }
 
-#[derive(Debug, Serialize, Deserialize, Clone)]
+#[derive(Debug, Serialize, Deserialize, Clone, Default)]
 pub struct JSONSchemaDefine {
     #[serde(rename = "type")]
     pub schema_type: Option<JSONSchemaType>,
@@ -197,19 +197,6 @@ pub struct JSONSchemaDefine {
     pub items: Option<Box<JSONSchemaDefine>>,
 }
 
-impl Default for JSONSchemaDefine {
-    fn default() -> Self {
-        Self {
-            schema_type: None,
-            description: None,
-            enum_values: None,
-            properties: None,
-            required: None,
-            items: None,
-        }
-    }
-}
-
 #[derive(Debug, Serialize, Deserialize, Clone)]
 pub struct FunctionParameters {
     #[serde(rename = "type")]