diff --git a/llmage/accounting.py b/llmage/accounting.py
index 24d0dfa..07a594e 100644
--- a/llmage/accounting.py
+++ b/llmage/accounting.py
@@ -1,4 +1,5 @@
 import asyncio
+import json
 import time
 from datetime import datetime
 from appPublic.log import exception, debug