diff --git a/makefile b/makefile
index 8e917e0..1d0fc40 100644
--- a/makefile
+++ b/makefile
@@ -36,7 +36,7 @@
 
 TOOLSDIR = ${INSTALLDIR}/${TOOLS}
 BREW = ${TOOLSDIR}/bin/brew -v
-DATESTAMP = $(shell date +%Y%m%d)
+DATESTAMP = $(shell date +%Y%m%d@%H:%M:%s)
 FULLDATE = $(shell date)
 GITREVISION = $(shell git log -1 | head -n3)
 
@@ -50,6 +50,7 @@
 #####
 
 linuxbrew:
+	-mv ${TOOLSDIR} ${TOOLSDIR}.${DATESTAMP}
 	mkdir -p ${TOOLSDIR}
 	sudo mkdir -p ${LINUXBREWDIR}
 	sudo ln -nfs ${TOOLSDIR} ${LINUXBREWINSTALL}