diff --git a/ci/Jenkinsfile b/ci/Jenkinsfile
index 78373e2c9016170a982e5d4f0dd62d6754cf1775..f422766afb030f232a7dd18ad735e74b2f77fa48 100644
--- a/ci/Jenkinsfile
+++ b/ci/Jenkinsfile
@@ -42,6 +42,12 @@ pipeline {
         git config --global user.email nobody@example.com
         '''
         checkoutCollaboraGitlab('steam/pressure-vessel', 'master', 'src')
+        dir('src') {
+          sh '''
+          ./build-aux/git-version-gen .tarball-version > .tarball-version_
+          mv .tarball-version_ .tarball-version
+          '''
+        }
 
         script {
           if (env.CI_DOCKER_REGISTRY_CRED == '') {