diff --git a/tasks/manage_pki_realms.yml b/tasks/manage_pki_realms.yml
index dec1f0b..9d057c1 100644
--- a/tasks/manage_pki_realms.yml
+++ b/tasks/manage_pki_realms.yml
@@ -35,6 +35,7 @@
     state: directory
     name: /etc/cron.d
     mode: 0755
+  when: pki_dhparams_regenerate
 
 - name: Regenerate Diffie-Hellman parameters periodically
   cron:
@@ -44,14 +45,14 @@
     user: 'root'
     job: 'cd {{ pki_base_path }} ; make regenerate-dhparams > /dev/null 2>&1'
     cron_file: 'pki-regenerate-dhparams'
-  when: pki_dhparams_regenerate is defined and pki_dhparams_regenerate
+  when: pki_dhparams_regenerate
 
 - name: Disable periodic DHparams regeneration
   cron:
     name: 'Regenerate Diffie-Hellman parameters in all PKI realms'
     cron_file: 'pki-regenerate-dhparams'
     state: 'absent'
-  when: pki_dhparams_regenerate is defined and not pki_dhparams_regenerate
+  when: not pki_dhparams_regenerate|bool
 
 - name: Create realm source directories
   file: