diff --git a/daily_report/dreport.py b/daily_report/dreport.py
index 2f39b64..617a683 100644
--- a/daily_report/dreport.py
+++ b/daily_report/dreport.py
@@ -265,6 +265,8 @@ class Report:
         data['all'] = self.get_all_data()
         data['input'] = defaultdict(list)
         data['output'] = defaultdict(list)
+        data['input'] = []
+        data['output'] = []
         data['input'].append(self.get_input_fromappid())
         fromappids = ['wxcff7381e631cf54e']
         for fromappid in fromappids: