diff --git a/jobs/update-osmo-ci-on-slaves.yml b/jobs/update-osmo-ci-on-slaves.yml
index 5dcb5448..9601b1c3 100644
--- a/jobs/update-osmo-ci-on-slaves.yml
+++ b/jobs/update-osmo-ci-on-slaves.yml
@@ -5,7 +5,16 @@
       - axis:
           type: slave
           name: label
-          values: [ OsmocomBuild1, build1-debian9-lxc, build2-deb8build, admin2-deb8build, admin2-deb9build, host2-deb8build-ansible, host2-deb9build-ansible, build2-deb8build-ansible, build2-deb9build-ansible ]
+          values:
+            - OsmocomBuild1
+            - build1-debian9-lxc
+            - build2-deb8build
+            - admin2-deb8build
+            - admin2-deb9build
+            - host2-deb8build-ansible
+            - host2-deb9build-ansible
+            - build2-deb8build-ansible
+            - build2-deb9build-ansible
     properties:
       - build-discarder:
           days-to-keep: 30
diff --git a/jobs/update-osmo-python-on-slaves.yml b/jobs/update-osmo-python-on-slaves.yml
index 554a2738..322ed57b 100644
--- a/jobs/update-osmo-python-on-slaves.yml
+++ b/jobs/update-osmo-python-on-slaves.yml
@@ -5,7 +5,16 @@
       - axis:
           type: slave
           name: label
-          values: [ OsmocomBuild1, build1-debian9-lxc, build2-deb8build, admin2-deb8build, admin2-deb9build, host2-deb8build-ansible, host2-deb9build-ansible, build2-deb8build-ansible, build2-deb9build-ansible ]
+          values:
+            - OsmocomBuild1
+            - build1-debian9-lxc
+            - build2-deb8build
+            - admin2-deb8build
+            - admin2-deb9build
+            - host2-deb8build-ansible
+            - host2-deb9build-ansible
+            - build2-deb8build-ansible
+            - build2-deb9build-ansible
     properties:
       - build-discarder:
           days-to-keep: 30