diff --git a/boards/models/post/sync.py b/boards/models/post/sync.py
--- a/boards/models/post/sync.py
+++ b/boards/models/post/sync.py
@@ -180,7 +180,11 @@ class SyncManager:
                     title = tag_content.find(TAG_TITLE).text or ''
                     text = tag_content.find(TAG_TEXT).text or ''
                     pub_time = tag_content.find(TAG_PUB_TIME).text
-                    tripcode = tag_content.find(TAG_TRIPCODE).text
+                    tripcode_tag = tag_content.find(TAG_TRIPCODE)
+                    if tripcode_tag is not None:
+                        tripcode = tripcode_tag.text or ''
+                    else:
+                        tripcode = ''
 
                     thread = tag_content.find(TAG_THREAD)
                     tags = []