diff --git a/tasks/lookup_tables.yml b/tasks/lookup_tables.yml
index 313c6c6..9c94cd3 100644
--- a/tasks/lookup_tables.yml
+++ b/tasks/lookup_tables.yml
@@ -3,8 +3,12 @@
   template:
     src: ldap_table.cf.j2
     dest: "{{ postfix_mountpoint }}/{{ domain }}_ldap_{{ item }}.cf"
-  when:
-    - postfix_mail_domains[domain][item+'_lookup'].provider|default(postfix_lookup_provider) == 'ldap'
+  when: >-
+    postfix_mail_domains[domain][item+'_lookup'].provider
+    | default(postfix_lookup_provider) == 'ldap' or
+    ( item == 'group' and postfix_ldap_use_group_alias and
+    postfix_mail_domains[domain]['alias_lookup'].provider
+    | default(postfix_lookup_provider) == 'ldap' )
   loop:
     - user
     - alias