diff --git a/accountant/views/users.py b/accountant/views/users.py
index a8d8fa9..7514b86 100644
--- a/accountant/views/users.py
+++ b/accountant/views/users.py
@@ -40,10 +40,10 @@ def load_user_from_auth(auth):
     return load_user_from_token(token)
 
 
-def requires_auth(f):
-    @wraps(f)
+def requires_auth(func):
     """Decorator to check user authentication before handling a request."""
 
+    @wraps(func)
     def wrapped(*args, **data):
         """Check user authentication from requests headers and return 401 if
         unauthorized."""
@@ -56,7 +56,7 @@ def requires_auth(f):
 
         if user:
             g.user = user
-            return f(*args, **data)
+            return func(*args, **data)
 
         ns.abort(
             401,