diff --git a/config.ini b/config.ini
index 8e061fa..aa4a5ec 100644
--- a/config.ini
+++ b/config.ini
@@ -1,2 +1,4 @@
 [global]
+# Persistent file for storage of times, in .json format.
+# Remove or leave empty for temporary (/tmp/ftracker-db.json) storage
 db_file = db.json
diff --git a/ftracker/core.py b/ftracker/core.py
index 4fce052..7433622 100644
--- a/ftracker/core.py
+++ b/ftracker/core.py
@@ -9,7 +9,8 @@ if not config:
 
 
 from tinydb import TinyDB
-db = TinyDB(config.get('global','db_file', fallback='/tmp/ftracker-db.json'), indent=4)
+dbfile = config['global'].get('db_file') or '/tmp/ftracker-db.json'
+db = TinyDB(dbfile, indent=4)
 # TODO: Load name list if needed