diff --git a/rowers/utils.py b/rowers/utils.py
index 961b29ee..72ce934f 100644
--- a/rowers/utils.py
+++ b/rowers/utils.py
@@ -905,7 +905,7 @@ def step_to_string(step):
             target = 'Target: Power at {v} % of FTP'.format(v=value)
         elif value > 1000:
             target = 'Target: Power at {v} Watt'.format(v=value-1000)
-        else:
+        elif valuelow > 0 and valuehigh > 0:
             if valuelow < 1000:
                 target = 'Target: Power between {l} and {h} % of FTP'.format(
                     l = valuelow,