diff --git a/tasks/config.yml b/tasks/config.yml
index eb18a8d..59f0e12 100644
--- a/tasks/config.yml
+++ b/tasks/config.yml
@@ -39,7 +39,7 @@
         group: root
         mode: 0600
       when:
-        - mosquitto_acl_enabled
+        - mosquitto_acl_enabled | bool
         - mosquitto_acl is defined
       notify: __mosquitto_restart
   become: True
diff --git a/tasks/install.yml b/tasks/install.yml
index 113beee..dd8cd49 100644
--- a/tasks/install.yml
+++ b/tasks/install.yml
@@ -32,6 +32,6 @@
         name: allow_mosquitto_port
         state: present
         rules: '-A INPUT -m state --state NEW -p tcp --dport {{ mosquitto_port }} -j ACCEPT'
-      when: mosquitto_iptables_enabled
+      when: mosquitto_iptables_enabled | bool
   become: True
   become_user: root
diff --git a/tasks/main.yml b/tasks/main.yml
index c527746..1b87670 100644
--- a/tasks/main.yml
+++ b/tasks/main.yml
@@ -2,6 +2,6 @@
 - import_tasks: install.yml
 - import_tasks: config.yml
 - import_tasks: tls.yml
-  when: mosquitto_tls_enabled
+  when: mosquitto_tls_enabled | bool
   tags: tls_renewal
 - import_tasks: post_tasks.yml