diff --git a/api/db/services/llm_service.py b/api/db/services/llm_service.py
index 0f0b22119..4d4ccaa57 100644
--- a/api/db/services/llm_service.py
+++ b/api/db/services/llm_service.py
@@ -19,7 +19,7 @@ import re
 from common.token_utils import num_tokens_from_string
 from functools import partial
 from typing import Generator
-from api.db import LLMType
+from common.constants import LLMType
 from api.db.db_models import LLM
 from api.db.services.common_service import CommonService
 from api.db.services.tenant_llm_service import LLM4Tenant, TenantLLMService