diff --git a/roles/taskotron/buildmaster-configure/templates/taskotron.master.cfg.j2 b/roles/taskotron/buildmaster-configure/templates/taskotron.master.cfg.j2
index 3c80561d44..a8292d1ee2 100644
--- a/roles/taskotron/buildmaster-configure/templates/taskotron.master.cfg.j2
+++ b/roles/taskotron/buildmaster-configure/templates/taskotron.master.cfg.j2
@@ -284,7 +284,7 @@ def today(props):
 # (see https://pagure.io/taskotron/issue/273 )
 factory.addStep(steps.MasterShellCommand(
     command=util.Interpolate(
-        'test -d {{ public_artifacts_dir }}/%(kw:today)s/%(prop:uuid)s/ || '
+        '! test -d {{ public_artifacts_dir }}/%(kw:today)s/%(prop:uuid)s/ || '
         '( echo Multiple jobs with same UUID detected, aborting execution!; '
         '  echo See https://pagure.io/taskotron/issue/273 ; '
         '  exit 1 )',