diff --git a/roles/nginx/tasks/install.yml b/roles/nginx/tasks/install.yml
index 457640a27..4d65d60c7 100644
--- a/roles/nginx/tasks/install.yml
+++ b/roles/nginx/tasks/install.yml
@@ -12,7 +12,7 @@
   systemd:
     name: "{{ apache_service }}"    # apache2 or httpd, per /opt/iiab/iiab/vars/<OS>.yml
     state: stopped
-  when: apache_installed | bool
+  when: apache_installed is defined
   #ignore_errors: yes
 
 - name: Install required and helper packages for NGINX