diff --git a/server/db/repository/knowledge_file_repository.py b/server/db/repository/knowledge_file_repository.py
index f5e912f..404910f 100644
--- a/server/db/repository/knowledge_file_repository.py
+++ b/server/db/repository/knowledge_file_repository.py
@@ -27,7 +27,7 @@ def add_doc_to_db(session, kb_file: KnowledgeFile):
                 file_ext=kb_file.ext,
                 kb_name=kb_file.kb_name,
                 document_loader_name=kb_file.document_loader_name,
-                text_splitter_name=kb_file.text_splitter_name,
+                text_splitter_name=kb_file.text_splitter_name or "SpacyTextSplitter",
             )
             kb.file_count += 1
             session.add(new_file)
diff --git a/server/knowledge_base/utils.py b/server/knowledge_base/utils.py
index 3e8be26..3ab6560 100644
--- a/server/knowledge_base/utils.py
+++ b/server/knowledge_base/utils.py
@@ -102,6 +102,7 @@ class KnowledgeFile:
                     chunk_size=CHUNK_SIZE,
                     chunk_overlap=OVERLAP_SIZE,
                 )
+                self.text_splitter_name = "SpacyTextSplitter"
             else:
                 text_splitter_module = importlib.import_module('langchain.text_splitter')
                 TextSplitter = getattr(text_splitter_module, self.text_splitter_name)