diff --git a/src/vision/interfaces.ts b/src/vision/interfaces.ts
index 285ac7a..109dfc7 100644
--- a/src/vision/interfaces.ts
+++ b/src/vision/interfaces.ts
@@ -5,6 +5,7 @@ export type VOCRParams = {
   url?: string;
   file_store_key?: string;
   page_range?: Array<number>;
+  fine_grained?: boolean;
 };
 
 export interface VOCRResponse extends BaseResponse {