diff --git a/share/mk/install-new.mk b/share/mk/install-new.mk
index 469e986b2458..5e95c99be242 100644
--- a/share/mk/install-new.mk
+++ b/share/mk/install-new.mk
@@ -1,54 +1,68 @@
 # $FreeBSD$
 # $Id: install-new.mk,v 1.3 2012/03/24 18:25:49 sjg Exp $
 #
 #	@(#) Copyright (c) 2009, Simon J. Gerraty
 #
 #	This file is provided in the hope that it will
 #	be of use.  There is absolutely NO WARRANTY.
 #	Permission to copy, redistribute or otherwise
 #	use this file is hereby granted provided that 
 #	the above copyright notice and this notice are
 #	left intact. 
 #      
 #	Please send copies of changes and bug-fixes to:
 #	sjg@crufty.net
 #
 
 .if !defined(InstallNew)
 
 # copy if src and target are different making a backup if desired
 CmpCp= CmpCp() { \
 	src=$$1 target=$$2 _bak=$$3; \
 	if ! test -s $$target || ! cmp -s $$target $$src; then \
 		trap "" 1 2 3 15; \
 		if test -s $$target; then \
 			if test "x$$_bak" != x; then \
 				rm -f $$target$$_bak; \
 				mv $$target $$target$$_bak; \
 			else \
 				rm -f $$target; \
 			fi; \
 		fi; \
 		cp $$src $$target; \
 	fi; }
 
+# Replace the file if they are different and make a backup if desired
+CmpReplace= CmpReplace() { \
+	src=$$1 target=$$2 _bak=$$3; \
+	if ! test -s $$target || ! cmp -s $$target $$src; then \
+		trap "" 1 2 3 15; \
+		if test -s $$target; then \
+			if test "x$$_bak" != x; then \
+				rm -f $$target$$_bak; \
+				cp -f $$target $$target$$_bak; \
+			fi; \
+		fi; \
+		mv -f $$src $$target; \
+	fi; }
+
 # If the .new file is different, we want it.
 # Note: this function will work as is for *.new$RANDOM"
-InstallNew= ${CmpCp}; InstallNew() { \
+InstallNew= ${CmpReplace}; InstallNew() { \
 	_t=-e; _bak=; \
 	while :; do \
 		case "$$1" in \
 		-?) _t=$$1; shift;; \
 		--bak) _bak=$$2; shift 2;; \
 		*) break;; \
 		esac; \
 	done; \
 	for new in "$$@"; do \
 		if test $$_t $$new; then \
 			target=`expr $$new : '\(.*\).new'`; \
-			CmpCp $$new $$target $$_bak; \
+			CmpReplace $$new $$target $$_bak; \
 		fi; \
 		rm -f $$new; \
 	done; :; }
 
 .endif