diff --git a/web/app/components/datasets/create/step-two/index.tsx b/web/app/components/datasets/create/step-two/index.tsx
index 8a5389a341..023f555681 100644
--- a/web/app/components/datasets/create/step-two/index.tsx
+++ b/web/app/components/datasets/create/step-two/index.tsx
@@ -96,6 +96,8 @@ export enum IndexingType {
 }
 
 const DEFAULT_SEGMENT_IDENTIFIER = '\\n\\n'
+const DEFAULT_MAXMIMUM_CHUNK_LENGTH = 500
+const DEFAULT_OVERLAP = 50
 
 type ParentChildConfig = {
   chunkForContext: ParentMode
@@ -155,9 +157,9 @@ const StepTwo = ({
   const setSegmentIdentifier = useCallback((value: string) => {
     doSetSegmentIdentifier(value ? escape(value) : DEFAULT_SEGMENT_IDENTIFIER)
   }, [])
-  const [maxChunkLength, setMaxChunkLength] = useState(4000) // default chunk length
+  const [maxChunkLength, setMaxChunkLength] = useState(DEFAULT_MAXMIMUM_CHUNK_LENGTH) // default chunk length
   const [limitMaxChunkLength, setLimitMaxChunkLength] = useState(4000)
-  const [overlap, setOverlap] = useState(50)
+  const [overlap, setOverlap] = useState(DEFAULT_OVERLAP)
   const [rules, setRules] = useState<PreProcessingRule[]>([])
   const [defaultConfig, setDefaultConfig] = useState<Rules>()
   const hasSetIndexType = !!indexingType
diff --git a/web/app/components/datasets/create/step-two/inputs.tsx b/web/app/components/datasets/create/step-two/inputs.tsx
index 7a35db9153..ab62003da8 100644
--- a/web/app/components/datasets/create/step-two/inputs.tsx
+++ b/web/app/components/datasets/create/step-two/inputs.tsx
@@ -32,7 +32,7 @@ export const DelimiterInput: FC<InputProps> = (props) => {
     <Input
       type="text"
       className='h-9'
-      placeholder={t('datasetCreation.stepTwo.separatorPlaceholder') || ''}
+      placeholder={t('datasetCreation.stepTwo.separatorPlaceholder')!}
       {...props}
     />
   </FormField>
@@ -46,7 +46,7 @@ export const MaxLengthInput: FC<InputNumberProps> = (props) => {
     <InputNumber
       type="number"
       className='h-9'
-      placeholder={t('datasetCreation.stepTwo.maxLength') || ''}
+      placeholder={'≤ 4000'}
       max={4000}
       min={1}
       {...props}