diff --git a/Makefile b/Makefile
index 31816c2..526ea9c 100644
--- a/Makefile
+++ b/Makefile
@@ -7,16 +7,14 @@ TARGETS += elfutils-portability.patch
 
 include ../common/Makefile.common
 
-master-cvsroot = :gserver:cvs.devel.redhat.com:/cvs/devel
+MONOTONE = monotone
 
 elfutils-portability.patch: elfutils-$(VERSION).tar.gz
 	@rm -rf elfutils-master elfutils-portable
-	cvs -d $(master-cvsroot) -Q export \
-	    -d elfutils-master -r HEAD elfutils/elfutils
-	cvs -d $(master-cvsroot) -Q export \
-	    -d elfutils-portable -r portable-branch elfutils/elfutils
-	cd elfutils-master; autoreconf; rm -rf autom4te.cache
-	cd elfutils-portable; autoreconf; rm -rf autom4te.cache
+	$(MONOTONE) checkout -b com.redhat.elfutils elfutils-master
+	$(MONOTONE) checkout -b com.redhat.elfutils.portable elfutils-portable
+	cd elfutils-master; autoreconf; rm -rf autom4te.cache MT
+	cd elfutils-portable; autoreconf; rm -rf autom4te.cache MT
 	diff -rpu elfutils-master elfutils-portable | \
 	filterdiff --remove-timestamps --strip=1 --addprefix=elfutils/ > $@.new
 	mv $@.new $@