diff --git a/build-k8s-lenz.jenkins b/build-k8s-lenz.jenkins
index b1c4c8e..1e9aa7e 100644
--- a/build-k8s-lenz.jenkins
+++ b/build-k8s-lenz.jenkins
@@ -44,7 +44,7 @@ pipeline {
                                 apk add --no-cache git
                             fi
                         """
-                        k8slensVersion = "refs/tags/" . sh (
+                        k8slensVersion = "refs/tags/" + sh (
                             script: """
                                 git \
                                     -c 'versionsort.suffix=-' \