diff --git a/rowers/views.py b/rowers/views.py
index bef20278..cc4c649b 100644
--- a/rowers/views.py
+++ b/rowers/views.py
@@ -3010,8 +3010,12 @@ def otwrankings_view(request,theuser=0,
 
 
         if  not np.isnan(pwr):
-            pwr2 = pwr*ratio
-	    a = {
+            try:
+                pwr2 = pwr*ratio
+            except:
+                pwr2 = pwr
+
+            a = {
 	        'duration':timedeltaconv(t),
 	        'power':int(pwr),
                 'upper':int(pwr2)}