diff --git a/DataStore.py b/DataStore.py
index 2d66cb3..333204c 100644
--- a/DataStore.py
+++ b/DataStore.py
@@ -13,9 +13,9 @@ class Task:
         self.parentid = parentid
 
 class TaskRef:
-    def __init__(self, taskid, dt):
+    def __init__(self, taskid, time):
         self.taskid = taskid
-        self.dt = dt
+        self.time = time
 
 class DataStore:
     def __init__(self, dbfile):
@@ -78,7 +78,7 @@ WHERE id = 0
         c.execute('''
 INSERT INTO history
 VALUES (0, ?, ?)
-''', (ct.taskid, ct.dt.strftime(HISTORY_DT_FMT)))
+''', (ct.taskid, ct.time.strftime(HISTORY_DT_FMT)))
         c.close()
         self.conn.commit()