diff --git a/rowers/views.py b/rowers/views.py
index e61d7822..dd61c267 100644
--- a/rowers/views.py
+++ b/rowers/views.py
@@ -2657,7 +2657,7 @@ def rankings_view(request,theuser=0,
 	    if pieceunit == 'd':
 		rankingdistances.append(value)
 	    else:
-		rankingdurations.append(datetime.time(minute=value,hour=hourvalue))
+		rankingdurations.append(datetime.time(minute=int(value),hour=int(hourvalue)))
     else:
 	form = PredictedPieceForm()