diff --git a/frontend/src/api/mutator.ts b/frontend/src/api/mutator.ts
index fbe9ae6..24cf9d1 100644
--- a/frontend/src/api/mutator.ts
+++ b/frontend/src/api/mutator.ts
@@ -1,4 +1,3 @@
-
 function getActorId(): string | undefined {
   if (typeof window !== "undefined") {
     const stored = window.localStorage.getItem("actor_employee_id");
@@ -12,6 +11,11 @@ function getActorId(): string | undefined {
   }
   return process.env.NEXT_PUBLIC_ACTOR_EMPLOYEE_ID;
 }
+
+/**
+ * Orval-generated client expects the fetcher to return an object like:
+ *   { data: <json>, status: <number>, headers: Headers }
+ */
 export async function customFetch<T>(
   url: string,
   options: RequestInit,
@@ -28,10 +32,13 @@ export async function customFetch<T>(
     },
   });
 
+  const text = await res.text().catch(() => "");
+
   if (!res.ok) {
-    const text = await res.text().catch(() => "");
     throw new Error(`${res.status} ${res.statusText}${text ? `: ${text}` : ""}`);
   }
 
-  return (await res.json()) as T;
+  const json = text ? JSON.parse(text) : null;
+  // Match the types generated by Orval (status + headers + data)
+  return ({ data: json, status: res.status, headers: res.headers } as unknown) as T;
 }