diff --git a/rowers/c2stuff.py b/rowers/c2stuff.py
index 3f3346ac..6006ce60 100644
--- a/rowers/c2stuff.py
+++ b/rowers/c2stuff.py
@@ -634,8 +634,12 @@ def createc2workoutdata(w):
     for i in range(nrintervals):
         if itime[i]>0:
             mask = (row.df[' lapIdx'] == lapnames[i]) & (row.df[' WorkoutState'] == itype[i])
-            spmav = int(row.df[' Cadence (stokes/min)'][mask].mean().astype(int))
-            hrav = int(row.df[' HRCur (bpm)'][mask].mean().astype(int))
+            try:
+                spmav = int(row.df[' Cadence (stokes/min)'][mask].mean().astype(int))
+                hrav = int(row.df[' HRCur (bpm)'][mask].mean().astype(int))
+            except AttributeError:
+                spmav = int(row.df[' Cadence (stokes/min)'][mask].mean())
+                hrav = int(row.df[' HRCur (bpm)'][mask].mean())
             intervaldict = {
             'type': 'distance',
             'time': int(10*itime[i]),