diff --git a/rowers/dataprep.py b/rowers/dataprep.py
index f1dc1cad..bb749179 100644
--- a/rowers/dataprep.py
+++ b/rowers/dataprep.py
@@ -113,7 +113,8 @@ def repair_data(verbose=False):
                 print w.id
             try:
                 rowdata = rdata(w.csvfilename)
-                update_strokedata(w.id,rowdata.df)
+                if rowdata:
+                    update_strokedata(w.id,rowdata.df)
             except IOError, AttributeError:
                 pass