diff --git a/data_chain/apps/base/convertor.py b/data_chain/apps/base/convertor.py
index 50de33b8a4ca4cf4665fa553d4054405ca0f8c8e..1f5955f4995f523a608902eeeb6bc151b76054c1 100644
--- a/data_chain/apps/base/convertor.py
+++ b/data_chain/apps/base/convertor.py
@@ -418,7 +418,7 @@ class Convertor:
                 embeddingModel=knowledge_base_entity.embedding_model,
                 rerankMethod=knowledge_base_entity.rerank_method,
                 rerankName=knowledge_base_entity.rerank_name,
-                spearatingCharacters=knowledge_base_entity.spearating_characters,
+                separatingCharacters=knowledge_base_entity.separating_characters,
                 description=knowledge_base_entity.description,
                 docCnt=knowledge_base_entity.doc_cnt,
                 docSize=knowledge_base_entity.doc_size,