diff --git a/Jenkinsfile b/Jenkinsfile
index 3d4de34..ac5f035 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -7,6 +7,7 @@ node {
     }
 
     stage('Build image') {
+        sh 'make'
         /* This builds the actual image; synonymous to
          * docker build on the command line */
         app = docker.build("jenkins/sos-milter")