diff --git a/nilmtools/copy_one.py b/nilmtools/copy_one.py
index a00d45c..6b59711 100755
--- a/nilmtools/copy_one.py
+++ b/nilmtools/copy_one.py
@@ -12,6 +12,8 @@ import sys
 def main(argv = None):
     f = nilmtools.filter.Filter()
     parser = f.setup_parser("Copy a stream")
+    parser.add_argument('-n', '--nometa', action='store_true',
+                        help="Don't copy or check metadata")
 
     # Parse arguments
     try:
@@ -25,8 +27,9 @@ def main(argv = None):
         raise SystemExit(1)
 
     # Copy metadata
-    meta = f.client_src.stream_get_metadata(f.src.path)
-    f.check_dest_metadata(meta)
+    if not args.nometa:
+        meta = f.client_src.stream_get_metadata(f.src.path)
+        f.check_dest_metadata(meta)
 
     # Copy all rows of data using the faster Numpy interfaces
     extractor = NumpyClient(f.src.url).stream_extract_numpy
diff --git a/nilmtools/copy_wildcard.py b/nilmtools/copy_wildcard.py
index 203f032..7dc61be 100755
--- a/nilmtools/copy_wildcard.py
+++ b/nilmtools/copy_wildcard.py
@@ -16,6 +16,8 @@ def main(argv = None):
 
     Example: %(prog)s -u http://host1/nilmdb -U http://host2/nilmdb /sharon/*
     """, skip_paths = True)
+    parser.add_argument('-n', '--nometa', action='store_true',
+                        help="Don't copy or check metadata")
     parser.add_argument("path", action="store", nargs="+",
                         help='Wildcard paths to copy')
     args = parser.parse_args(argv)
@@ -56,6 +58,8 @@ def main(argv = None):
             new_argv.extend(["--end", "@" + repr(args.end)])
         if args.dry_run:
             new_argv.extend(["--dry-run"])
+        if args.nometa:
+            new_argv.extend(["--nometa"])
         if args.force_metadata:
             new_argv.extend(["--force-metadata"])
         new_argv.extend([stream[0], stream[0]])