diff --git a/lab-pipeline.groovy b/lab-pipeline.groovy
index 8c60736..bd9f890 100644
--- a/lab-pipeline.groovy
+++ b/lab-pipeline.groovy
@@ -132,7 +132,7 @@
                         salt.runSaltProcessStep(saltMaster, '* and not kvm*', 'saltutil.sync_all', [], null, true)
 
                         // workaround - install apt-transport-https
-                        salt.runSaltProcessStep(saltMaster, '* and not kvm*', 'pkg.install', ['apt-transport-https refresh=True'], null, true)
+                        salt.runSaltProcessStep(saltMaster, '* and not kvm*', 'pkg.install', ['apt-transport-https', 'refresh=True'], null, true)
                         salt.enforceState(saltMaster, 'I@linux:system', ['linux', 'openssh', 'salt.minion', 'ntp'], true)
                     }