1 files changed, 1 insertions, 0 deletions

diff --git a/README.md b/README.md
index 68909ac..5aaa3ce 100644
--- a/README.md
+++ b/README.md
@@ -38,6 +38,7 @@ Options:
   -h, --help			print this help.
   -d, --device=DEVICE		specify device name.
   -c, --class=CLASS		specify device class.
+  -V, --version			print version and exit.
 
 Operations:
   i, info			get device info.