diff --git a/bigboot_execute_resize.yml b/bigboot_execute_resize.yml
index efe5808..2055593 100644
--- a/bigboot_execute_resize.yml
+++ b/bigboot_execute_resize.yml
@@ -66,3 +66,6 @@
         state: started
         enabled: true
       loop: "{{ bigboot_systemd_disabled_services }}"
+      when:
+        - bigboot_systemd_disabled_services is defined
+        - bigboot_systemd_disabled_services | length > 0