diff --git a/public/ioctl_defines b/public/ioctl_defines
index a1cd0b9a0..4097fb935 100644
--- a/public/ioctl_defines
+++ b/public/ioctl_defines
@@ -405,7 +405,7 @@ define(`TCXONC', `0x0000540a')
 define(`TCFLSH', `0x0000540b')
 define(`TIOCEXCL', `0x0000540c')
 define(`TIOCNXCL', `0x0000540d')
-define(`TIOCSCTTY', `0x0000540e')
+define(`TIOCSCTTY', ifelse(target_arch, mips, 0x00005480, 0x0000540e))
 define(`TIOCGPGRP', `0x0000540f')
 define(`TIOCSPGRP', `0x00005410')
 define(`TIOCOUTQ', ifelse(target_arch, mips, 0x00007472, 0x00005411))