diff --git a/sys/unix/NewInstall.unx b/sys/unix/NewInstall.unx
index 9a42e09a5..d6dbdd1eb 100644
--- a/sys/unix/NewInstall.unx
+++ b/sys/unix/NewInstall.unx
@@ -65,7 +65,7 @@ the following build command:
     make WANT_WIN_TTY=1 WANT_WIN_CURSES=1 WANT_WIN_X11=1 install
 
 To build a binary with tty + curses + X11 + Qt support (that is, all the
-interaces that are available), you can use the following shorthand build
+interfaces that are available), you can use the following shorthand build
 command:
     make WANT_WIN_ALL all
     make WANT_WIN_ALL install
@@ -146,6 +146,6 @@ additional interfaces. See below.
  | --remove-section=.note.ABI-tag/usr/lib/x86_64-linux-gnu/libQt5Core.so.5    |
  +----------+---------+-----------------+-------------------------------------+
 
-# NetHack 3.7  NewInstall.unx       $NHDT-Date: 1597340557 2020/08/13 17:42:37 $  $NHDT-Branch: NetHack-3.7 $:$NHDT-Revision: 1.8 $
+# NetHack 3.7  NewInstall.unx       $NHDT-Date: 1597340908 2020/08/13 17:48:28 $  $NHDT-Branch: NetHack-3.7 $:$NHDT-Revision: 1.9 $
 # Copyright (c) 2009 by Kenneth Lorber, Kensington, Maryland
 # NetHack may be freely redistributed.  See license for details.