diff --git a/packages/better-auth/src/types/options.ts b/packages/better-auth/src/types/options.ts
index f8ff4aa4d7..119820a341 100644
--- a/packages/better-auth/src/types/options.ts
+++ b/packages/better-auth/src/types/options.ts
@@ -68,12 +68,6 @@ export interface BetterAuthOptions {
 		| BetterSqlite3Database
 		| Dialect
 		| Adapter
-		| {
-				postgres?: PostgresPool;
-				mysql?: MysqlPool;
-				sqlite?: BetterSqlite3Database;
-				generateId?: ((size?: number) => string) | false;
-		  }
 		| {
 				dialect: Dialect;
 				type: KyselyDatabaseType;