diff --git a/makefile b/makefile
index 5c1e405..65606b4 100644
--- a/makefile
+++ b/makefile
@@ -56,8 +56,8 @@
 
 
 bootstrap-release: tidyup
-	echo "${FULLDATE}" > ${TOOLSDIR}/tools-builder.bootstrap.datetime
-	echo "${GITREVISION}"  > ${TOOLSDIR}/tools-builder.bootstrap.gitrevision
+	echo "${FULLDATE}" >> ${TOOLSDIR}/tools-builder.bootstrap.datetime
+	echo "${GITREVISION}" >> ${TOOLSDIR}/tools-builder.bootstrap.gitrevision
 	cd ${INSTALLDIR} && mv -v ${TOOLS} ${TOOLS}-bootstrap-${DATESTAMP}
 	cd ${INSTALLDIR} && tar -czvf ${EXPORTDIR}/${TOOLS}-bootstrap-${DATESTAMP}.tar.gz ${TOOLS}-bootstrap-${DATESTAMP}
 	cd ${INSTALLDIR} && mv -v ${TOOLS}-bootstrap-${DATESTAMP} ${TOOLS}
@@ -78,15 +78,15 @@
 	ln -nfs ${TOOLSDIR}/bin/vim ${TOOLSDIR}/bin/vi
 
 full-release: tidyup
-	echo "${FULLDATE}"  > ${TOOLSDIR}/tools-builder.full.datetime
-	echo "${GITREVISION}"  > ${TOOLSDIR}/tools-builder.full.gitrevision
+	echo "${FULLDATE}" >> ${TOOLSDIR}/tools-builder.full.datetime
+	echo "${GITREVISION}" >> ${TOOLSDIR}/tools-builder.full.gitrevision
 	cd ${INSTALLDIR} && mv -v ${TOOLS} ${TOOLS}-${DATESTAMP}
 	cd ${INSTALLDIR} && tar -czvf ${EXPORTDIR}/${TOOLS}-${DATESTAMP}.tar.gz ${TOOLS}-${DATESTAMP}
 	cd ${INSTALLDIR} && mv -v ${TOOLS}-${DATESTAMP} ${TOOLS}
 
 upgrade:
-	echo "${FULLDATE}" > ${TOOLSDIR}/tools-builder.upgrade.datetime
-	echo "${GITREVISION}"  > ${TOOLSDIR}/tools-builder.upgrade.gitrevision
+	echo "${FULLDATE}" >> ${TOOLSDIR}/tools-builder.upgrade.datetime
+	echo "${GITREVISION}" >> ${TOOLSDIR}/tools-builder.upgrade.gitrevision
 	brew update
 	brew upgrade
 	brew unlink python