diff --git a/nilmtools/copy.py b/nilmtools/copy.py
index 3bd4100..f740028 100644
--- a/nilmtools/copy.py
+++ b/nilmtools/copy.py
@@ -8,7 +8,6 @@ import sys
 def main():
     f = nilmtools.filter.Filter()
     parser = f.setup_parser("Copy a stream")
-    group = parser.add_argument_group("Copy options")
 
     # Parse arguments
     try: