diff --git a/README.md b/README.md
index 4a066e6..d1bbe7f 100644
--- a/README.md
+++ b/README.md
@@ -7,6 +7,13 @@
 git clone http://git.wacanal.cloud/ernie/databank-extension.git
 ```
 
+2. Change lines 14 and 15 in file **script.js** with the IP and port where the DataBank API server is listening
+
+```JavaScript
+const baseDominio = 'xxx.xxx.xxx.xxx'; 
+const portTLS = 'xxxx';
+```
+
 2. Open Google Chrome and go to the option "Extensions->Manage Extensions"
 3. Once in the extension manager, select "Load unpacked"
 4. Select the cloned repository