diff --git a/rowers/dataprep.py b/rowers/dataprep.py
index d8424f62..43bd8840 100644
--- a/rowers/dataprep.py
+++ b/rowers/dataprep.py
@@ -667,6 +667,7 @@ def new_workout_from_df(r,df,
     starttimeunix = mktime(startdatetime.utctimetuple())
     df[' ElapsedTime (sec)'] = df['TimeStamp (sec)']
     df['TimeStamp (sec)'] = df['TimeStamp (sec)']+starttimeunix
+    print df.info()
 
     row = rrdata(df=df)
     row.write_csv(csvfilename,gzip=True)