diff --git a/Jenkinsfile b/Jenkinsfile
index cdf4005..d29f4b1 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -1,7 +1,7 @@
 pipeline {
     agent {
         dockerfile {
-            label 'agent1'
+            label 'docker-x86_64'
             filename 'Dockerfile.jenkins'
             args '--user=root --privileged -v /var/run/docker.sock:/var/run/docker.sock'
             reuseNode true
diff --git a/Makefile b/Makefile
index 07611d7..309de04 100644
--- a/Makefile
+++ b/Makefile
@@ -44,7 +44,8 @@ ${TMPDIR}:
 test-r6rs: ${TMPDIR}
 	cd ${TMPDIR} && printf "#!r6rs\n(import (rnrs base) (rnrs control) (rnrs io simple) (rnrs files) (rnrs programs) (srfi :64) (retropikzel ${LIBRARY}))\n" > test-r6rs.sps
 	cat ${TESTFILE} >> ${TMPDIR}/test-r6rs.sps
-	cd ${TMPDIR} && akku install chez-srfi akku-r7rs
+	cd ${TMPDIR} && snow-chibi install --impls=${SCHEME} --install-source-dir=. --install-library-dir=. --always-yes srfi.180
+	cd ${TMPDIR} && akku install chez-srfi akku-r7rs srfi.180
 	cd ${TMPDIR} && COMPILE_R7RS=${SCHEME} timeout 120 compile-scheme -I .akku/lib -o test-r6rs test-r6rs.sps
 	cd ${TMPDIR} && timeout 120 ./test-r6rs