diff --git a/src/types.ts b/src/types.ts
index 173f5eaf7..657463bd0 100644
--- a/src/types.ts
+++ b/src/types.ts
@@ -651,7 +651,7 @@ export type SearchAPIResponse<
   }[];
   next?: string;
   previous?: string;
-  results_warning?: SearchWarning;
+  results_warning?: SearchWarning | null;
 };
 
 export type SearchWarning = {