diff --git a/Jenkinsfile b/Jenkinsfile
index 54999b3..1e79e64 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -1,4 +1,5 @@
 node('docker') {
+  deleteDir()
   stage 'Checkout'
   checkout scm
 
@@ -6,6 +7,9 @@
   docker.build('jenkins')
 
   stage 'Test'
-  sh "git clone https://github.com/sstephenson/bats.git"
-  sh "bats/bin/bats tests"
+  sh """
+  git submodule update --init --recursive
+  git clone https://github.com/sstephenson/bats.git
+  bats/bin/bats tests
+  """
 }