diff --git a/docs/content/docs/concepts/database.mdx b/docs/content/docs/concepts/database.mdx
index c07e7fe79e..0039c02c9a 100644
--- a/docs/content/docs/concepts/database.mdx
+++ b/docs/content/docs/concepts/database.mdx
@@ -406,7 +406,7 @@ export const auth = betterAuth({
   user: {
     additionalFields: {
       role: {
-        type: "string",
+        type: ["user", "admin"],
         required: false,
         defaultValue: "user",
         input: false, // don't allow user to set role