diff --git a/rowers/c2stuff.py b/rowers/c2stuff.py
index 6cb34ded..4fcbd5e9 100644
--- a/rowers/c2stuff.py
+++ b/rowers/c2stuff.py
@@ -859,7 +859,7 @@ def default(o):
     raise TypeError
 
 # Uploading workout
-def workout_c2_upload(user,w,async=False):
+def workout_c2_upload(user,w,asynchron=False):
     message = 'trying C2 upload'
     try:
         if mytypes.c2mapping[w.workouttype] is None:
@@ -888,7 +888,7 @@ def workout_c2_upload(user,w,async=False):
                    'Content-Type': 'application/json'}
         import urllib
         url = "https://log.concept2.com/api/users/%s/results" % (c2userid)
-        if not async:
+        if not asynchron:
             response = requests.post(url,headers=headers,data=json.dumps(data,default=default))
 
 
diff --git a/rowers/uploads.py b/rowers/uploads.py
index a48361e7..ef2f5a4e 100644
--- a/rowers/uploads.py
+++ b/rowers/uploads.py
@@ -525,7 +525,7 @@ def do_sync(w,options, quick=False):
 
     if ('upload_to_C2' in options and options['upload_to_C2']) or (w.user.c2_auto_export and ispromember(w.user.user)):
         try:
-            message,id = c2stuff.workout_c2_upload(w.user.user,w,async=True)
+            message,id = c2stuff.workout_c2_upload(w.user.user,w,asynchron=True)
         except NoTokenError:
             id = 0
             message = "Something went wrong with the Concept2 sync"