diff --git a/rag/app/naive.py b/rag/app/naive.py
index 631050a49..886d40e99 100644
--- a/rag/app/naive.py
+++ b/rag/app/naive.py
@@ -724,8 +724,15 @@ def chunk(filename, binary=None, from_page=0, to_page=100000,
     elif re.search(r"\.doc$", filename, re.IGNORECASE):
         callback(0.1, "Start to parse.")
 
+        try:
+            from tika import parser as tika_parser
+        except Exception as e:
+            callback(0.8, f"tika not available: {e}. Unsupported .doc parsing.")
+            logging.warning(f"tika not available: {e}. Unsupported .doc parsing for {filename}.")
+            return []
+
         binary = BytesIO(binary)
-        doc_parsed = parser.from_buffer(binary)
+        doc_parsed = tika_parser.from_buffer(binary)
         if doc_parsed.get('content', None) is not None:
             sections = doc_parsed['content'].split('\n')
             sections = [(_, "") for _ in sections if _]