diff --git a/src/routes/personal-contact.routes.js b/src/routes/personal-contact.routes.js
index 43cc1f0..539fe47 100644
--- a/src/routes/personal-contact.routes.js
+++ b/src/routes/personal-contact.routes.js
@@ -9,7 +9,7 @@ const router = express.Router()
 const createContactSchema = z.object({
   firstName: z.string().min(1, 'Meno je povinné'),
   lastName: z.string().optional(),
-  phone: z.string().optional().nullable(),
+  phone: z.union([z.string(), z.literal(''), z.null()]).optional(),
   email: z.string().email('Neplatný email'),
   secondaryEmail: z.union([z.string().email('Neplatný email'), z.literal('')]).optional(),
   companyId: z.union([z.string().uuid(), z.literal(''), z.null()]).optional(),