diff --git a/server/knowledge_base/utils.py b/server/knowledge_base/utils.py
index b6772cd2..cfd8d1d7 100644
--- a/server/knowledge_base/utils.py
+++ b/server/knowledge_base/utils.py
@@ -43,7 +43,7 @@ def get_vs_path(knowledge_base_name: str, vector_name: str):
 
 def get_file_path(knowledge_base_name: str, doc_name: str):
     doc_path = Path(get_doc_path(knowledge_base_name))
-    file_path = doc_path / doc_name
+    file_path = (doc_path / doc_name).resolve()
     if file_path.is_relative_to(doc_path):
         return str(file_path)