diff --git a/lib/galaxy/actions/library.py b/lib/galaxy/actions/library.py
index aec0c500566..432ff9359bd 100644
--- a/lib/galaxy/actions/library.py
+++ b/lib/galaxy/actions/library.py
@@ -248,7 +248,7 @@ class LibraryActions(object):
         uploaded_dataset.dbkey = params.get('dbkey', None)
         uploaded_dataset.to_posix_lines = params.get('to_posix_lines', None)
         uploaded_dataset.space_to_tab = params.get('space_to_tab', None)
-        uploaded_dataset.tag_using_filenames = params.get('tag_using_filenames', True)
+        uploaded_dataset.tag_using_filenames = params.get('tag_using_filenames', False)
         uploaded_dataset.purge_source = getattr(trans.app.config, 'ftp_upload_purge', True)
         if in_folder:
             uploaded_dataset.in_folder = in_folder