diff --git a/Dockerfile.jenkins b/Dockerfile.jenkins
index 5b03f7f..a67a678 100644
--- a/Dockerfile.jenkins
+++ b/Dockerfile.jenkins
@@ -7,8 +7,10 @@ RUN apt-get update && apt-get install -y \
     docker.io \
     libffi-dev \
     pandoc
-RUN git clone https://github.com/ashinn/chibi-scheme.git --depth=1 \
-    && cd chibi-scheme && make -j 16 && make -j 16 install
+RUN git clone https://github.com/ashinn/chibi-scheme.git --depth=1
+RUN cd chibi-scheme && make -j 16 && make -j 16 install
+RUN snow-chibi install "(foreign c)"
+RUN snow-chibi install "(srfi 170)"
 WORKDIR /builddir
 COPY Makefile .
 COPY compile-r7rs.scm .
diff --git a/Jenkinsfile b/Jenkinsfile
index 3c422b9..5aa3253 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -23,7 +23,7 @@ pipeline {
             }
             steps {
                 script {
-                    def r6rs_implementations = sh(script: 'chibi-scheme -I ./snow -I . compile-r7rs.scm --list-r6rs-schemes', returnStdout: true).split()
+                    def r6rs_implementations = sh(script: 'chibi-scheme compile-r7rs.scm --list-r6rs-schemes', returnStdout: true).split()
                     parallel r6rs_implementations.collectEntries { implementation->
                         [(implementation): {
                                 stage("${implementation} R6RS") {
@@ -47,7 +47,7 @@ pipeline {
             }
             steps {
                 script {
-                    def r7rs_implementations = sh(script: 'chibi-scheme -I ./snow -I . compile-r7rs.scm --list-r7rs-schemes', returnStdout: true).split()
+                    def r7rs_implementations = sh(script: 'chibi-scheme compile-r7rs.scm --list-r7rs-schemes', returnStdout: true).split()
                     parallel r7rs_implementations.collectEntries { implementation->
                         [(implementation): {
                                 stage("${implementation} R7RS") {