diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8de1311..d11664b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,9 +1,10 @@
-## v1.0.X
+## v1.0.1
 
 ## Enhancements
 * Add example playbook.
 * localhost line sould not contain hostname information (see https://www.debian.org/doc/manuals/debian-reference/ch05.en.html#_the_hostname_resolution).
 * Purge /etc/hosts of multiple lines that contains $HOSTNAME without the default ipv4 ip address.
+* Purge conditions of /etc/hosts are the same as permanent ip address (ipv4).
 
 ## v1.0
 
diff --git a/README.md b/README.md
index 62e1fa7..a8c967c 100644
--- a/README.md
+++ b/README.md
@@ -18,12 +18,12 @@ Manage some basics configuration for IPR's servers.
 * **basics__domain** : Domain to use [default : `{{ ansible_domain }}`].
 * **basics__hosts_localhost_manage** : If the localhost (127.0.0.1) line should be managed [default : `false`].
 * **basics__hosts_localhost_content** : Content of the localhost (127.0.0.1) line [default : `localhost.localdomain localhost`].
-* **basics__hosts_ipv4_manage** : If the ipv4 (lan) line should be managed [default : `false`].
-* **basics__hosts_ipv4_content** : Content of the ipv4 (lan) line [default : `{{ ansible_hostname }}.{{ basics__domain }} {{ ansible_hostname }}`].
+* **basics__hosts_ipv4_manage** : If the ipv4 address line should be managed [default : `false`].
+* **basics__hosts_ipv4_content** : Content of the ipv4 address line [default : `{{ ansible_hostname }}.{{ basics__domain }} {{ ansible_hostname }}`].
 
 ## Example Playbook
 
-* If you want to manage both localhost (127.0.0.1) and permanent IP (lan/ipv4) lines :
+* If you want to manage both localhost (127.0.0.1) and permanent IP (ipv4) lines :
 
 ``` yml
 - hosts: serverXYZ
@@ -39,18 +39,19 @@ Manage some basics configuration for IPR's servers.
 - hosts: serverXYZ
   roles:
     - role: ipr-cnrs.basics
-      basics__hosts_localhost_manage: true
       basics__domain: 'mydomain.org'
+      basics__hosts_ipv4_manage: true
 ````
 
 ## Configuration
 
 ### Hosts
-- Ensure to have the correct fqdn and hostname in /etc/hosts.
-  - You can define the domain if it's not correct on the remote host.
-  - You can choose to define the localhost (127.0.0.1) line content.
-  - You can choose to define the permanent ip (127.0.0.1) line content.
-    - All other lines that contains hostname without this permanent ip will be removed.
+
+Ensure to have the correct fqdn and hostname in /etc/hosts :
+- You can define the domain if it's not correct on the remote host.
+- You can choose to define the localhost (127.0.0.1) line content.
+- You can choose to define the permanent ip (ipv4) line content.
+  - All other lines that contains hostname without this permanent ip address will be removed.
 
 ## Development
 
diff --git a/tasks/main.yml b/tasks/main.yml
index 6cb4092..f3dd44d 100644
--- a/tasks/main.yml
+++ b/tasks/main.yml
@@ -3,7 +3,7 @@
 
 ## Modify /etc/hosts
 
-- name: Set 127.0.0.1 line in hosts file
+- name: Config host - Set 127.0.0.1 line in hosts file
   lineinfile:
     dest: /etc/hosts
     state: present
@@ -13,7 +13,7 @@
   when: (basics__hosts_localhost_manage and
          ansible_lo.ipv4.address is defined)
 
-- name: Set ipv4 line in hosts file
+- name: Config host - Set ipv4 line in hosts file
   lineinfile:
     dest: /etc/hosts
     state: present
@@ -22,14 +22,14 @@
     backup: yes
   when: (basics__hosts_ipv4_manage and
          ansible_default_ipv4.address is defined)
-  register: basics__register_ipv4_line
 
-- name: Purge other lines with hostname
+- name: Config host - Purge other lines with hostname
   lineinfile:
     dest: /etc/hosts
     state: absent
     regexp: '^(?!({{ ansible_default_ipv4.address }})).*{{ ansible_hostname }}'
     backup: yes
-  when: basics__register_ipv4_line.changed
+  when: (basics__hosts_ipv4_manage and
+         ansible_default_ipv4.address is defined)
 
 ## }}}