diff --git a/share/examples/etc/make.conf b/share/examples/etc/make.conf
index 1fd3c79cf8bd..a703cc72d181 100644
--- a/share/examples/etc/make.conf
+++ b/share/examples/etc/make.conf
@@ -97,7 +97,7 @@
 #COPTFLAGS= -O -pipe
 #
 # Compare before install.
-#INSTALL=install -C
+#INSTALL+= -C
 #
 # Mtree will follow symlinks.
 #MTREE_FOLLOWS_SYMLINKS= -L
diff --git a/share/man/man5/make.conf.5 b/share/man/man5/make.conf.5
index 4eb5ed5e209d..6d2ea967b6bb 100644
--- a/share/man/man5/make.conf.5
+++ b/share/man/man5/make.conf.5
@@ -24,7 +24,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd January 21, 2013
+.Dd April 26, 2013
 .Dt MAKE.CONF 5
 .Os
 .Sh NAME
@@ -205,7 +205,7 @@ instead of
 the default install command.
 To install only files for which the target differs or does not exist, use
 .Bd -literal -offset indent
-INSTALL="install -C"
+INSTALL+= -C
 .Ed
 Note that some makefiles (including those in
 .Pa /usr/share/mk )