diff --git a/packages/prisma/zod-utils.ts b/packages/prisma/zod-utils.ts
index 6c8ea0c386..96131ebdb0 100644
--- a/packages/prisma/zod-utils.ts
+++ b/packages/prisma/zod-utils.ts
@@ -750,7 +750,8 @@ export const getRetellLLMSchema = z
           })
           .passthrough()
       )
-      .nullable(),
+      .nullable()
+      .optional(),
   })
   .passthrough();