diff --git a/server/routes/user.ts b/server/routes/user.ts
index e1011da..bef5c56 100644
--- a/server/routes/user.ts
+++ b/server/routes/user.ts
@@ -63,7 +63,7 @@ export default function (fastify: FastifyInstance) {
       const input = schema.parse(req.body)
 
       const updatedUser = prisma.user.update({
-        where: { userId: req.user.id },
+        where: { id: req.user.id },
         data: {
           displayName: input.displayName,
         },