diff --git a/rowers/c2stuff.py b/rowers/c2stuff.py
index 3c514742..4d034e6a 100644
--- a/rowers/c2stuff.py
+++ b/rowers/c2stuff.py
@@ -755,7 +755,7 @@ def workout_c2_upload(user,w):
     if (checkworkoutuser(user,w)):
         c2userid = get_userid(r.c2token)
         if not c2userid:
-            raise NoTokenError
+            raise NoTokenError("User has no token")
 
         data = createc2workoutdata(w)