diff --git a/build-debian-packages-prometheus-relay.groovy b/build-debian-packages-prometheus-relay.groovy
index 043298d..1044371 100644
--- a/build-debian-packages-prometheus-relay.groovy
+++ b/build-debian-packages-prometheus-relay.groovy
@@ -82,7 +82,7 @@
                         aptly.publish(APTLY_URL)
                     }
 
-                    stage("rebuild docker images")
+                    stage("rebuild docker images") {
                         build job: "docker-build-images-prometheus", parameters: []
                     }
                 }