diff --git a/oml/tasks.py b/oml/tasks.py
index b555ea7..4b5f6bd 100644
--- a/oml/tasks.py
+++ b/oml/tasks.py
@@ -80,7 +80,8 @@ class Tasks(Thread):
                 with open(self._taskspath) as f:
                     tasks = json.load(f)
                     for task in tasks:
-                        self.q.put(task)
+                        if len(task) == 2:
+                            self.q.put(tuple(task))
                     logger.debug('loaded %s tasks', len(tasks))
             except:
                 logger.debug('failed to load saved tasks', exc_info=True)