diff --git a/rowers/dataprep.py b/rowers/dataprep.py
index 26a5a561..e9b48542 100644
--- a/rowers/dataprep.py
+++ b/rowers/dataprep.py
@@ -1390,7 +1390,7 @@ def parsenonpainsled(fileformat,f2,summary):
     try:
         row = parsers[fileformat](f2)
         hasrecognized = True
-    except (KeyError,IndexError):
+    except (KeyError,IndexError,ValueError):
         hasrecognized = False
         return None, hasrecognized, '', 'unknown'
 
diff --git a/rowers/views/workoutviews.py b/rowers/views/workoutviews.py
index 861320de..ecdd672b 100644
--- a/rowers/views/workoutviews.py
+++ b/rowers/views/workoutviews.py
@@ -4497,7 +4497,7 @@ def workout_upload_api(request):
 
         if id == 0:
             if message is not None:
-                message = {'status':'false','message':'unable to process file'+message}
+                message = {'status':'false','message':'unable to process file: '+message}
             else:
                 message = {'status': 'false', 'message': 'unable to process file'}
             return JSONResponse(status=400,data=message)