diff --git a/api/opportunities.ts b/api/opportunities.ts
index 93019a0d..992ebc7d 100644
--- a/api/opportunities.ts
+++ b/api/opportunities.ts
@@ -313,3 +313,11 @@ export async function closeOpportunity(opportunityId: string, userId: string) {
     );
   }
 }
+
+// Dummy default export for Vercel (this file is a utility, not a handler)
+export default async function handler(
+  req: VercelRequest,
+  res: VercelResponse,
+) {
+  return res.status(501).json({ error: "Not a handler" });
+}