--- wikisrc/users/ryoon/how_to_install_netbsd_amd64_to_macbook_air_11_inch.mdwn	2014/06/09 08:40:36	1.13
+++ wikisrc/users/ryoon/how_to_install_netbsd_amd64_to_macbook_air_11_inch.mdwn	2014/06/09 20:28:12	1.14
@@ -61,7 +61,7 @@ gunzip is not needed.
 
 
 ## Boot NetBSD from the USB stick
-Connect the USB stick, push power button, and press and hold Option keys to
+Connect the USB stick, push power button, and press and hold Option key to
 Startup Manager (builtin boot selector).
 See <http://support.apple.com/kb/HT1948?viewlocale=en_US>.
 Select USB stick icon, and NetBSD is booted.