diff --git a/rowers/utils.py b/rowers/utils.py
index 74633335..c12d71d5 100644
--- a/rowers/utils.py
+++ b/rowers/utils.py
@@ -897,6 +897,7 @@ def step_to_string(step):
         try:
             valuehigh = step['targetValueHigh']
         except KeyError:
+            valuehigh = 0
 
         if value < 10 and value>0:
             target = 'Target: Power in zone {v}'.format(v=value)