diff --git a/docs/readme.md b/docs/readme.md
index 918788d..b6f953e 100644
--- a/docs/readme.md
+++ b/docs/readme.md
@@ -11,7 +11,7 @@ The recommended way to use the AWS SDK for Java in your project is to consume it
 </dependency>
 ```
 
-Before making any requests, you need to call the `init` method using your API key.
+Before making any requests, you need to call the `init` method using your API key (just once)
 ```java
 Asaas.init("your_api_key");
 ```