diff --git a/roles/openqa/dispatcher/tasks/main.yml b/roles/openqa/dispatcher/tasks/main.yml
index 621b3925d5..10e58afe5b 100644
--- a/roles/openqa/dispatcher/tasks/main.yml
+++ b/roles/openqa/dispatcher/tasks/main.yml
@@ -224,7 +224,7 @@
 # variable.
 - name: Install extra arch WANTED images config if enabled
   copy: src=images.json.extraarches dest=/etc/fedora-openqa/images.json
-  when: openqa_extraarches
+  when: openqa_extraarches|bool
   notify:
   - restart openqa scheduler consumer