diff --git a/ChangeLog b/ChangeLog
index 424d2964..92fc4c5a 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2009-01-25  Mike Frysinger  <vapier@gentoo.org>
+
+	Fix typo in libtool install mode documentation.
+	* libltdl/config/ltmain.m4sh (func_mode_help): Change -inst-prefix
+	to -inst-prefix-dir.
+	* doc/libtool.texi (Install mode): Likewise.
+
 2009-01-24  Charles Wilson  <libtool@cwilson.fastmail.fm>
 
 	Add -Wall to cwrapper tests.
diff --git a/doc/libtool.texi b/doc/libtool.texi
index d304f28c..c3a29063 100644
--- a/doc/libtool.texi
+++ b/doc/libtool.texi
@@ -1573,7 +1573,7 @@ In @dfn{install} mode, libtool interprets most of the elements of
 The following components of @var{mode-args} are treated specially:
 
 @table @option
-@item -inst-prefix @var{inst-prefix-dir}
+@item -inst-prefix-dir @var{inst-prefix-dir}
 When installing into a temporary staging area, rather than the
 final @var{prefix}, this argument is used to reflect the
 temporary path, in much the same way @command{automake} uses
diff --git a/libltdl/config/ltmain.m4sh b/libltdl/config/ltmain.m4sh
index 82ee7235..08045bf7 100644
--- a/libltdl/config/ltmain.m4sh
+++ b/libltdl/config/ltmain.m4sh
@@ -1107,7 +1107,7 @@ either the \`install' or \`cp' program.
 
 The following components of INSTALL-COMMAND are treated specially:
 
-  -inst-prefix PREFIX-DIR  Use PREFIX-DIR as a staging area for installation
+  -inst-prefix-dir PREFIX-DIR  Use PREFIX-DIR as a staging area for installation
 
 The rest of the components are interpreted as arguments to that command (only
 BSD-compatible install options are recognized)."