diff --git a/README.md b/README.md
index 1690383..c1e8c67 100644
--- a/README.md
+++ b/README.md
@@ -53,6 +53,7 @@ Role Variables
 * **zmlogologin:** Inform the path for your logo (Login Screen) - don't inform and no image will be applied;
 * **zmlogoapp:** Inform the path for your logo (Application Screen) - don't inform and no image will be applied;
 * **timezone:** inform the timezone the playbook should set in your server;
+* **ip_address:** inform the server's ip address - See [ZCS 8.8 upgrade Proxy port problem](https://forums.zimbra.org/viewtopic.php?f=15&t=62695)
 
 Service Variables - Inform "y" or "n"
 --------------
@@ -90,6 +91,7 @@ Example Playbook
            timezone: America/Sao_Paulo
            zmpasswd: 123change
            zmnetwork: 192.168.122.0/24
+           ip_address: 192.168.122.192
            zmlogologin: /tmp/login.png
            zmlogoapp: /tmp/app.png
 ```
diff --git a/tasks/install/zimbra.yml b/tasks/install/zimbra.yml
index 4237736..2134922 100644
--- a/tasks/install/zimbra.yml
+++ b/tasks/install/zimbra.yml
@@ -50,7 +50,7 @@
     chdir: /opt/zimbra/bin/
 
 - name: Configuring Zimbra Hostname for Domain {{ domain }}
-  command: ./zmprov md {{ domain }} zimbraVirtualIPAddress 127.0.0.1
+  command: ./zmprov md {{ domain }} zimbraVirtualIPAddress {{ ip_address }}
   args:
     chdir: /opt/zimbra/bin/
 
diff --git a/vars/main.yml b/vars/main.yml
index 6aa8668..4941d7e 100644
--- a/vars/main.yml
+++ b/vars/main.yml
@@ -26,3 +26,4 @@ domain: "localdomain"
 zmpasswd: "!23Change"
 zmnetwork: "192.168.200.0/8"
 timezone: UTC
+ip_address: "127.0.0.1"