diff --git a/Jenkinsfile b/Jenkinsfile
index 003cd14..3dc6676 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -20,8 +20,8 @@ pipeline {
                 script {
                     implementations.each { implementation ->
                         stage("${implementation} primitives") {
-                            sh "docker build --build-arg COMPILE_R7RS=${COMPILE_R7RS} --tag=r7rs-pffi-test-${COMPILE_R7RS} -f Dockerfile.test ."
-                            sh "docker run -v ${PWD}:/workdir -w /workdir -t r7rs-pffi-test-${COMPILE_R7RS} sh -c \"make COMPILE_R7RS=${COMPILE_R7RS} TESTNAME=${TESTNAME} test-compile-r7rs\""
+                            sh "docker build --build-arg COMPILE_R7RS=${implementation} --tag=r7rs-pffi-test-${implementation} -f Dockerfile.test ."
+                            sh "docker run -v ${PWD}:/workdir -w /workdir -t r7rs-pffi-test-${implementation} sh -c \"make COMPILE_R7RS=${implementation} TESTNAME=${TESTNAME} test-compile-r7rs\""
                         }
                     }
                 }