diff --git a/roles/setup_barmanserver/tasks/validate_setup_barmanserver.yml b/roles/setup_barmanserver/tasks/validate_setup_barmanserver.yml
index 7c5ad8ee..f153defe 100644
--- a/roles/setup_barmanserver/tasks/validate_setup_barmanserver.yml
+++ b/roles/setup_barmanserver/tasks/validate_setup_barmanserver.yml
@@ -8,7 +8,7 @@
 - name: Check that all required barman packages have been installed
   ansible.builtin.assert:
     that:
-      - "{{ ansible_facts.packages[item] }} is defined"
+      - ansible_facts.packages[item] is defined
     fail_msg: "Package {{ item }} has not been installed."
     success_msg: "Package {{ item }} has been installed."
   loop:
diff --git a/roles/setup_efm/tasks/validate_setup_efm.yml b/roles/setup_efm/tasks/validate_setup_efm.yml
index 83f301ea..63972709 100644
--- a/roles/setup_efm/tasks/validate_setup_efm.yml
+++ b/roles/setup_efm/tasks/validate_setup_efm.yml
@@ -55,7 +55,7 @@
 - name: Check that all required packages have been installed on RedHat
   ansible.builtin.assert:
     that:
-      - "{{ ansible_facts.packages[item] }} is defined"
+      - ansible_facts.packages[item] is defined
     fail_msg: "Package {{ item }} has not been installed."
     success_msg: "Package {{ item }} has been installed."
   loop:
@@ -66,7 +66,7 @@
 - name: Check that all required packages have been installed on Debian
   ansible.builtin.assert:
     that:
-      - "{{ ansible_facts.packages[item] }} is defined"
+      - ansible_facts.packages[item] is defined
     fail_msg: "Package {{ item }} has not been installed."
     success_msg: "Package {{ item }} has been installed."
   loop:
diff --git a/roles/setup_pemserver/tasks/validate_setup_pemserver.yml b/roles/setup_pemserver/tasks/validate_setup_pemserver.yml
index 1d461a23..29041153 100644
--- a/roles/setup_pemserver/tasks/validate_setup_pemserver.yml
+++ b/roles/setup_pemserver/tasks/validate_setup_pemserver.yml
@@ -67,7 +67,7 @@
 - name: Check that all required packages have been installed
   ansible.builtin.assert:
     that:
-      - "{{ ansible_facts.packages[item] }} is defined"
+      - ansible_facts.packages[item] is defined
     fail_msg: "Package {{ item }} has not been installed."
     success_msg: "Package {{ item }} has been installed."
   loop: "{{ pem_server_packages }}"