diff --git a/Doc/lib/libcrypt.tex b/Doc/lib/libcrypt.tex
index 8006f046f06..f9d161509d2 100644
--- a/Doc/lib/libcrypt.tex
+++ b/Doc/lib/libcrypt.tex
@@ -2,7 +2,7 @@
          Function used to check \UNIX{} passwords}
 
 \declaremodule{builtin}{crypt}
-  \platform{UNIX}
+  \platform{Unix}
 \modulesynopsis{The \cfunction{crypt()} function used to check \UNIX{}
   passwords.}
 \moduleauthor{Steven D. Majewski}{sdm7g@virginia.edu}
diff --git a/Doc/lib/libdbm.tex b/Doc/lib/libdbm.tex
index 09ce0df0de3..5516231359c 100644
--- a/Doc/lib/libdbm.tex
+++ b/Doc/lib/libdbm.tex
@@ -2,7 +2,7 @@
          Simple ``database'' interface}
 
 \declaremodule{builtin}{dbm}
-  \platform{UNIX}
+  \platform{Unix}
 \modulesynopsis{The standard ``database'' interface, based on ndbm.}
 
 
diff --git a/Doc/lib/libfcntl.tex b/Doc/lib/libfcntl.tex
index 7003c637d94..37632be54dc 100644
--- a/Doc/lib/libfcntl.tex
+++ b/Doc/lib/libfcntl.tex
@@ -3,7 +3,7 @@
          The \function{fcntl()} and \function{ioctl()} system calls}
 
 \declaremodule{builtin}{fcntl}
-  \platform{UNIX}
+  \platform{Unix}
 \modulesynopsis{The \function{fcntl()} and \function{ioctl()} system calls.}
 
 \indexii{UNIX@\UNIX{}}{file control}
diff --git a/Doc/lib/libgdbm.tex b/Doc/lib/libgdbm.tex
index 585693c7f1e..73683ca97d1 100644
--- a/Doc/lib/libgdbm.tex
+++ b/Doc/lib/libgdbm.tex
@@ -2,7 +2,7 @@
          GNU's reinterpretation of dbm}
 
 \declaremodule{builtin}{gdbm}
-  \platform{UNIX}
+  \platform{Unix}
 \modulesynopsis{GNU's reinterpretation of dbm.}
 
 
diff --git a/Doc/lib/libgrp.tex b/Doc/lib/libgrp.tex
index 5095806b63c..10f12e8ef55 100644
--- a/Doc/lib/libgrp.tex
+++ b/Doc/lib/libgrp.tex
@@ -2,7 +2,7 @@
          The group database}
 
 \declaremodule{builtin}{grp}
-  \platform{UNIX}
+  \platform{Unix}
 \modulesynopsis{The group database (\function{getgrnam()} and friends).}
 
 
diff --git a/Doc/lib/libpopen2.tex b/Doc/lib/libpopen2.tex
index 2a87adbfd91..6610676e18b 100644
--- a/Doc/lib/libpopen2.tex
+++ b/Doc/lib/libpopen2.tex
@@ -2,7 +2,7 @@
          Subprocesses with accessible standard I/O streams}
 
 \declaremodule[popentwo]{standard}{popen2}
-  \platform{UNIX}
+  \platform{Unix}
 \modulesynopsis{Subprocesses with accessible standard I/O streams.}
 \sectionauthor{Drew Csillag}{drew_csillag@geocities.com}
 
diff --git a/Doc/lib/libposix.tex b/Doc/lib/libposix.tex
index 0918ad0a004..c3348939e42 100644
--- a/Doc/lib/libposix.tex
+++ b/Doc/lib/libposix.tex
@@ -2,7 +2,7 @@
          The most common \POSIX{} system calls}
 
 \declaremodule{builtin}{posix}
-  \platform{UNIX}
+  \platform{Unix}
 \modulesynopsis{The most common \POSIX{} system calls (normally used
 via module \module{os}).}
 
diff --git a/Doc/lib/libposixfile.tex b/Doc/lib/libposixfile.tex
index 491e0e29f05..b5c4451e6e5 100644
--- a/Doc/lib/libposixfile.tex
+++ b/Doc/lib/libposixfile.tex
@@ -3,7 +3,7 @@
          File-like objects with locking support}
 
 \declaremodule{builtin}{posixfile}
-  \platform{UNIX}
+  \platform{Unix}
 \modulesynopsis{A file-like object with support for locking.}
 \moduleauthor{Jaap Vermeulen}{}
 \sectionauthor{Jaap Vermeulen}{}
diff --git a/Doc/lib/libpwd.tex b/Doc/lib/libpwd.tex
index 72c6c7ae9ae..fb8d693b36f 100644
--- a/Doc/lib/libpwd.tex
+++ b/Doc/lib/libpwd.tex
@@ -2,7 +2,7 @@
          The password database}
 
 \declaremodule{builtin}{pwd}
-  \platform{UNIX}
+  \platform{Unix}
 \modulesynopsis{The password database (\function{getpwnam()} and friends).}
 
 This module provides access to the \UNIX{} password database.
diff --git a/Doc/lib/libresource.tex b/Doc/lib/libresource.tex
index 5e6f109fb1e..869bb17125f 100644
--- a/Doc/lib/libresource.tex
+++ b/Doc/lib/libresource.tex
@@ -2,7 +2,7 @@
          Resource usage information}
 
 \declaremodule{builtin}{resource}
-  \platform{UNIX}
+  \platform{Unix}
 \modulesynopsis{An interface to provide resource usage information on
   the current process.}
 \moduleauthor{Jeremy Hylton}{jhylton@cnri.reston.va.us}
diff --git a/Doc/lib/libstat.tex b/Doc/lib/libstat.tex
index 219cf3617db..ad4bf8926ce 100644
--- a/Doc/lib/libstat.tex
+++ b/Doc/lib/libstat.tex
@@ -2,7 +2,7 @@
          Interpreting \function{stat()} results}
 
 \declaremodule{standard}{stat}
-  \platform{UNIX}
+  \platform{Unix}
 \modulesynopsis{Utilities for interpreting the results of
   \function{os.stat()}, \function{os.lstat()} and \function{os.fstat()}.}
 \sectionauthor{Skip Montanaro}{skip@automatrix.com}
diff --git a/Doc/lib/libsyslog.tex b/Doc/lib/libsyslog.tex
index a0bdd45d69b..6f58287b26f 100644
--- a/Doc/lib/libsyslog.tex
+++ b/Doc/lib/libsyslog.tex
@@ -2,7 +2,7 @@
          \UNIX{} syslog library routines}
 
 \declaremodule{builtin}{syslog}
-  \platform{UNIX}
+  \platform{Unix}
 \modulesynopsis{An interface to the \UNIX{} syslog library routines.}
 
 
diff --git a/Doc/lib/libtermios.tex b/Doc/lib/libtermios.tex
index b25db027df3..a4f1b70a708 100644
--- a/Doc/lib/libtermios.tex
+++ b/Doc/lib/libtermios.tex
@@ -2,7 +2,7 @@
          \POSIX{} style tty control}
 
 \declaremodule{builtin}{termios}
-  \platform{UNIX}
+  \platform{Unix}
 \modulesynopsis{\POSIX{} style tty control.}
 
 \indexii{\POSIX{}}{I/O control}
@@ -102,7 +102,7 @@ def getpass(prompt = "Password: "):
          Constants used with the \module{termios} module}
 
 \declaremodule[TERMIOSuppercase]{standard}{TERMIOS}
-  \platform{UNIX}
+  \platform{Unix}
 \modulesynopsis{Symbolic constants required to use the
   \module{termios} module.}