1 files changed, 2 insertions, 1 deletions
diff --git a/cmdtest b/cmdtest
index 28300ce..f8f925e 100755
--- a/cmdtest
+++ b/cmdtest
@@ -46,7 +46,8 @@ class CommandTester(cliapp.Application):
                              'test COMMAND (executable name/path; $PATH is '
                                 'not searched, so give absolute path when '
                                 'necessary)', 
-                             metavar='COMMAND')
+                             metavar='COMMAND',
+                             default=None)
 
     def process_args(self, dirnames):
         self.settings.require('command')