diff --git a/web/src/pages/agent/form/title-chunker-form/index.tsx b/web/src/pages/agent/form/title-chunker-form/index.tsx
index 2cff6679f3..5cc8efcd23 100644
--- a/web/src/pages/agent/form/title-chunker-form/index.tsx
+++ b/web/src/pages/agent/form/title-chunker-form/index.tsx
@@ -69,7 +69,9 @@ export enum TitleChunkerRulesField {
   Group = 'groupRules',
 }
 
-export type TitleChunkerFormSchemaType = z.infer<typeof FormSchema>;
+export type TitleChunkerFormSchemaType = z.infer<typeof FormSchema> & {
+  rules: z.infer<typeof rulesSchema>;
+};
 
 type LevelItemProps = {
   index: number;
diff --git a/web/src/pages/agent/utils.ts b/web/src/pages/agent/utils.ts
index bf46a2a120..5ae01936e7 100644
--- a/web/src/pages/agent/utils.ts
+++ b/web/src/pages/agent/utils.ts
@@ -355,9 +355,9 @@ function transformTokenChunkerParams(params: TokenChunkerFormSchemaType) {
 
 function transformTitleChunkerParams(params: TitleChunkerFormSchemaType) {
   const activeRules =
-    params.method === TitleChunkerMethod.Group
+    (params.method === TitleChunkerMethod.Group
       ? params.groupRules
-      : params.hierarchyRules;
+      : params.hierarchyRules) ?? params.rules;
 
   const levels = (activeRules || []).map((rule) =>
     transformObjectArrayToPureArray(rule.levels, 'expression'),