diff --git a/dto/openai_request.go b/dto/openai_request.go
index a51dffd8..50dee203 100644
--- a/dto/openai_request.go
+++ b/dto/openai_request.go
@@ -56,7 +56,7 @@ type GeneralOpenAIRequest struct {
 	ExtraBody           json.RawMessage   `json:"extra_body,omitempty"`
 	WebSearchOptions    *WebSearchOptions `json:"web_search_options,omitempty"`
 	// OpenRouter Params
-  Usage     json.RawMessage `json:"usage,omitempty"`
+	Usage     json.RawMessage `json:"usage,omitempty"`  
 	Reasoning json.RawMessage `json:"reasoning,omitempty"`
 }