diff --git a/maloja/apis/native_v1.py b/maloja/apis/native_v1.py
index 6e5ccac..5bab8c0 100644
--- a/maloja/apis/native_v1.py
+++ b/maloja/apis/native_v1.py
@@ -1,4 +1,5 @@
 import os
+import math
 
 from bottle import response, static_file, request, FormsDict