diff --git a/taskwiki/cache.py b/taskwiki/cache.py
index baa7479..4567f8e 100644
--- a/taskwiki/cache.py
+++ b/taskwiki/cache.py
@@ -157,6 +157,9 @@ class TaskCache(object):
             tw = self.warriors[match.group('source') or 'default']
             uuid = match.group('uuid')
 
+            if not uuid:
+                continue
+
             raw_task_info.append((uuid, tw))
 
         for tw in self.warriors.values():