diff --git a/readme.md b/readme.md
index 91d58fead..bffa2f5fa 100644
--- a/readme.md
+++ b/readme.md
@@ -81,7 +81,7 @@ AIX, Amiga OS, Android, Arch, Bada, BeOS, BlackBerry, CentOS, Chromium OS,
 Contiki, Fedora, Firefox OS, FreeBSD, Debian, DragonFly, Fuchsia, Gentoo, GNU,
 Haiku, Hurd, iOS, Joli, KaiOS, Linpus, Linux, Mac OS, Mageia, Mandriva, MeeGo,
 Minix, Mint, Morph OS, NetBSD, Nintendo, OpenBSD, OpenVMS, OS/2, Palm, PC-BSD,
-PCLinuxOS, Plan9, Playstation, QNX, RedHat, RIM Tablet OS, RISC OS, Sailfish,
+PCLinuxOS, Plan9, PlayStation, QNX, RedHat, RIM Tablet OS, RISC OS, Sailfish,
 Series40, Slackware, Solaris, SUSE, Symbian, Tizen, Ubuntu, Unix, VectorLinux,
 WebOS, Windows [Phone/Mobile], Zenwalk, ...