diff --git a/lmwsip/run.py b/lmwsip/run.py
index a47a85d..70d8585 100755
--- a/lmwsip/run.py
+++ b/lmwsip/run.py
@@ -3,9 +3,11 @@
 import sys
 import getopt
 import argparse
+import logging
 from lmwsip import LmwSip
 
 def run(args):
+    logging.basicConfig(level=args.debug)
     try:
         lmwsip = LmwSip(host=args.host, port=args.port,
                         ssl=not args.unencrypted,
@@ -43,6 +45,9 @@ def main():
     parser.add_argument("-t", "--time", action='store',
                         default=lastTime["time_of_day"],
                         help="Time replacement string [HH:MM]")
+    parser.add_argument("-D", "--debug", action='store',
+                        default="WARN",
+                        help="Debug level")
     parser.add_argument("files", type=argparse.FileType('r'), nargs="+",
                         help="Sip files to run")
     run(parser.parse_args())