diff --git a/src/app/api/admin/billing/invoices/[id]/refund/route.ts b/src/app/api/admin/billing/invoices/[id]/refund/route.ts
index 75450fd..1f2e76c 100644
--- a/src/app/api/admin/billing/invoices/[id]/refund/route.ts
+++ b/src/app/api/admin/billing/invoices/[id]/refund/route.ts
@@ -80,6 +80,9 @@ export async function POST(
         { status: 409 }
       );
     }
-    return NextResponse.json(safeError(e), { status: 500 });
+    return NextResponse.json(
+      { error: safeError(e, "Refund failed") },
+      { status: 500 }
+    );
   }
 }
diff --git a/src/app/api/admin/billing/invoices/[id]/void/route.ts b/src/app/api/admin/billing/invoices/[id]/void/route.ts
index 3148cce..6067586 100644
--- a/src/app/api/admin/billing/invoices/[id]/void/route.ts
+++ b/src/app/api/admin/billing/invoices/[id]/void/route.ts
@@ -69,6 +69,9 @@ export async function POST(
         { status: 409 }
       );
     }
-    return NextResponse.json(safeError(e), { status: 500 });
+    return NextResponse.json(
+      { error: safeError(e, "Void failed") },
+      { status: 500 }
+    );
   }
 }