diff --git a/Doc/lib/librotor.tex b/Doc/lib/librotor.tex
index d2a8460..488a49f 100644
--- a/Doc/lib/librotor.tex
+++ b/Doc/lib/librotor.tex
@@ -99,7 +99,8 @@
 a truly skilful and determined attacker to break the cipher.  So if you want
 to keep the NSA out of your files, this rotor cipher may well be unsafe, but
 for discouraging casual snooping through your files, it will probably be
-just fine, and may be somewhat safer than using the \UNIX{} \file{crypt}
+just fine, and may be somewhat safer than using the \UNIX{} \program{crypt}
 command.
+\index{NSA}
 \index{National Security Agency}\index{crypt(1)}
 % XXX How were Unix commands represented in the docs?
diff --git a/Doc/librotor.tex b/Doc/librotor.tex
index d2a8460..488a49f 100644
--- a/Doc/librotor.tex
+++ b/Doc/librotor.tex
@@ -99,7 +99,8 @@
 a truly skilful and determined attacker to break the cipher.  So if you want
 to keep the NSA out of your files, this rotor cipher may well be unsafe, but
 for discouraging casual snooping through your files, it will probably be
-just fine, and may be somewhat safer than using the \UNIX{} \file{crypt}
+just fine, and may be somewhat safer than using the \UNIX{} \program{crypt}
 command.
+\index{NSA}
 \index{National Security Agency}\index{crypt(1)}
 % XXX How were Unix commands represented in the docs?