diff --git a/rowers/dataprep.py b/rowers/dataprep.py
index 692b9359..871087d9 100644
--- a/rowers/dataprep.py
+++ b/rowers/dataprep.py
@@ -1723,7 +1723,7 @@ def getsmallrowdata_db(columns, ids=[], doclean=True, workstrokesonly=True):
         row = rdata(w.csvfilename)
         try:
             row.set_instroke_metrics()
-        except AttributeError:
+        except (AttributeError,TypeError):
             pass
 
         try: