diff --git a/src/renderer/src/config/models.ts b/src/renderer/src/config/models.ts
index cda55213..0a5ab6ef 100644
--- a/src/renderer/src/config/models.ts
+++ b/src/renderer/src/config/models.ts
@@ -180,7 +180,7 @@ export const EMBEDDING_REGEX = /(?:^text-|embed|bge-|e5-|LLM2Vec|retrieval|uae-|
 // Rerank models
 export const RERANKING_REGEX = /(?:rerank|re-rank|re-ranker|re-ranking|retrieval|retriever)/i
 
-export const NOT_SUPPORTED_REGEX = /(?:^tts|rerank|whisper|speech)/i
+export const NOT_SUPPORTED_REGEX = /(?:^tts|whisper|speech)/i
 
 // Tool calling models
 export const FUNCTION_CALLING_MODELS = [
diff --git a/src/renderer/src/pages/knowledge/components/KnowledgeSettingsPopup.tsx b/src/renderer/src/pages/knowledge/components/KnowledgeSettingsPopup.tsx
index 1036bc0f..b2e092b3 100644
--- a/src/renderer/src/pages/knowledge/components/KnowledgeSettingsPopup.tsx
+++ b/src/renderer/src/pages/knowledge/components/KnowledgeSettingsPopup.tsx
@@ -139,11 +139,11 @@ const PopupContainer: React.FC<Props> = ({ base: _base, resolve }) => {
         <Form.Item
           name="rerankModel"
           label={t('models.rerank_model')}
-          initialValue={getModelUniqId(base.rerankModel)}
           tooltip={{ title: t('models.rerank_model_tooltip'), placement: 'right' }}
           rules={[{ required: false, message: t('message.error.enter.model') }]}>
           <Select
             style={{ width: '100%' }}
+            defaultValue={getModelUniqId(base.rerankModel) || undefined}
             options={rerankSelectOptions}
             placeholder={t('settings.models.empty')}
             allowClear