diff --git a/lib/OpenQA/Scheduler/Model/Jobs.pm b/lib/OpenQA/Scheduler/Model/Jobs.pm
index ce172712720..6efb1ccc429 100644
--- a/lib/OpenQA/Scheduler/Model/Jobs.pm
+++ b/lib/OpenQA/Scheduler/Model/Jobs.pm
@@ -458,7 +458,9 @@ sub _assign_multiple_jobs_to_worker ($self, $jobs, $worker, $directly_chained_jo
     if (my $tmpdir = $worker->get_property('WORKER_TMPDIR')) {
         File::Path::rmtree($tmpdir);
     }
-    my %worker_properties = (JOBTOKEN => random_string(), WORKER_TMPDIR => tempdir());
+    my %worker_properties = (
+        JOBTOKEN => random_string(),
+        WORKER_TMPDIR => tempdir(sprintf('webui.worker-%d.XXXXXXXX', $worker_id), TMPDIR => 1));
     $worker->set_property(WORKER_TMPDIR => $worker_properties{WORKER_TMPDIR});
     $job_data{$_->id} = $_->prepare_for_work($worker, \%worker_properties) for @$jobs;
     return OpenQA::WebSockets::Client->singleton->send_jobs(\%job_info);
diff --git a/lib/OpenQA/Schema/Result/Jobs.pm b/lib/OpenQA/Schema/Result/Jobs.pm
index b5de7ec7b5c..0b683910a7f 100644
--- a/lib/OpenQA/Schema/Result/Jobs.pm
+++ b/lib/OpenQA/Schema/Result/Jobs.pm
@@ -387,7 +387,7 @@ sub prepare_for_work ($self, $worker = undef, $worker_properties = {}) {
         if (my $tmpdir = $worker->get_property('WORKER_TMPDIR')) {
             File::Path::rmtree($tmpdir);
         }
-        $worker->set_property(WORKER_TMPDIR => tempdir());
+        $worker->set_property(WORKER_TMPDIR => tempdir(sprintf('webui.worker-%d.XXXXXXXX', $worker->id), TMPDIR => 1));
     }
     return $job_hashref;
 }