diff --git a/server/routers/user/output.ts b/server/routers/user/output.ts
index f0333f2ba..1ad24f2ae 100644
--- a/server/routers/user/output.ts
+++ b/server/routers/user/output.ts
@@ -9,7 +9,7 @@ export const getUserSchema = z.object({
     streetAddress: z.string().optional(),
     zipCode: z.string(),
   }),
-  dateOfBirth: z.string(),
+  dateOfBirth: z.string().optional().default("N/A"),
   email: z.string().email(),
   firstName: z.string(),
   language: z.string(),