diff --git a/agent/structs.py b/agent/structs.py
index 3049ae0..55b6e61 100644
--- a/agent/structs.py
+++ b/agent/structs.py
@@ -36,8 +36,8 @@ class TariffStruct(BaseStruct):
 
     def __init__(self, tariff_id=0, speedIn=None, speedOut=None):
         self.tid = tariff_id
-        self.speedIn = speedIn
-        self.speedOut = speedOut
+        self.speedIn = speedIn or 0.0625
+        self.speedOut = speedOut or 0.0625
 
     def serialize(self):
         dt = pack("!Iff", int(self.tid), float(self.speedIn), float(self.speedOut))