diff --git a/tasks/galera_install_apt.yml b/tasks/galera_install_apt.yml
index c1bf46e1..7a79aae1 100644
--- a/tasks/galera_install_apt.yml
+++ b/tasks/galera_install_apt.yml
@@ -72,7 +72,7 @@
   apt_repository:
     repo: "{{ galera_percona_xtrabackup_repo.repo }}"
     filename: "{{ galera_percona_xtrabackup_repo.filename | default(omit) }}"
-    state: "{{ use_percona_upstream | bool | ternary('present','absent') }}"
+    state: "{{ (use_percona_upstream | bool) | ternary('present','absent') }}"
   register: add_repos
   until: add_repos|success
   retries: 5
@@ -102,7 +102,7 @@
     name: "{{ item }}"
     state: "{{ galera_server_package_state }}"
     update_cache: yes
-    cache_valid_time: "{{ add_repos | changed | ternary('0', cache_timeout) }}"
+    cache_valid_time: "{{ (add_repos | changed) | ternary('0', cache_timeout) }}"
   with_items:
     - "{{ galera_packages_list | selectattr('enabled') | rejectattr('local_pkg') | sum(attribute='packages', start=[]) }}"
 
diff --git a/tasks/galera_running_check.yml b/tasks/galera_running_check.yml
index 66d715c0..1ec81df5 100644
--- a/tasks/galera_running_check.yml
+++ b/tasks/galera_running_check.yml
@@ -15,7 +15,7 @@
 
 - name: Set fact for extra arguments in MySQL commands
   set_fact:
-    mysql_extra_args: "{{ ansible_os_family == 'Debian' | ternary('--defaults-file=/etc/mysql/debian.cnf', '') }}"
+    mysql_extra_args: "{{ (ansible_os_family == 'Debian') | ternary('--defaults-file=/etc/mysql/debian.cnf', '') }}"
   tags:
     - galera-cluster-state-check
     - galera-bootstrap