diff --git a/README.md b/README.md
index 46ad921..2efdfc1 100644
--- a/README.md
+++ b/README.md
@@ -14,8 +14,10 @@ $api = new Instamojo\Instamojo(API_KEY, AUTH_TOKEN, 'https://test.instamojo.com/
 $ php composer.phar require instamojo/instamojo-php
 ```
 
-**Note**: If you're not using Composer then directly include the contents of `src` directory in your project.
-
+**Note**: If you're not using Composer then directly include the contents of `src` directory in your project and install php5-curl.
+```bash
+$ apt-get install php5-curl
+```
 
 ## Usage
 
@@ -133,4 +135,4 @@ You have these functions to interact with the Request a Payment API:
   * `allow_repeated_payments`: To disallow multiple successful payments on a Payment Request pass `false` for this field. If this is set to `false` then the link is not accessible publicly after first successful payment, though you can still access it using API(default value: `true`).
 
 
-Further documentation is available at https://docs.instamojo.com/v1.1/docs
\ No newline at end of file
+Further documentation is available at https://docs.instamojo.com/v1.1/docs