diff --git a/samples/debugging/main.py b/samples/debugging/main.py
index 082edc4..31a276e 100644
--- a/samples/debugging/main.py
+++ b/samples/debugging/main.py
@@ -21,12 +21,17 @@
 
 
 FLAGS = gflags.FLAGS
-FLAGS.dump_request_response = True
 logger = logging.getLogger()
 logger.setLevel(logging.INFO)
 
 
 def main(argv):
+  try:
+    argv = FLAGS(argv)
+  except gflags.FlagsError, e:
+    print '%s\\nUsage: %s ARGS\\n%s' % (e, argv[0], FLAGS)
+    sys.exit(1)
+
   service = build('translate', 'v2',
                   developerKey='AIzaSyAQIKv_gwnob-YNrXV2stnY86GSGY81Zr0',
                   model=LoggingJsonModel())