diff --git a/docs/references/avatars/get-flag.md b/docs/references/avatars/get-flag.md
index 04a8bbca64..4afdd8a133 100644
--- a/docs/references/avatars/get-flag.md
+++ b/docs/references/avatars/get-flag.md
@@ -1,3 +1,3 @@
-You can use this endpoint to show different country flags icons to your users. The code argument receives the 2 letter country code. Use width, height and quality arguments to change the output settings.
+You can use this endpoint to show different country flags icons to your users. The code argument receives the 2 letter country code. Use width, height and quality arguments to change the output settings. Country codes follow the [ISO 3166-1](http://en.wikipedia.org/wiki/ISO_3166-1) standard.
 
 When one dimension is specified and the other is 0, the image is scaled with preserved aspect ratio. If both dimensions are 0, the API provides an image at source quality. If dimensions are not specified, the default size of image returned is 100x100px.
diff --git a/docs/services/locale.md b/docs/services/locale.md
index e757d13a4d..d9a1c38d2d 100644
--- a/docs/services/locale.md
+++ b/docs/services/locale.md
@@ -1,3 +1,3 @@
-The Locale service allows you to customize your app based on your users' location. Using this service, you can get your users' location, IP address, list of countries and continents names, phone codes, currencies, and more. 
+The Locale service allows you to customize your app based on your users' location. Using this service, you can get your users' location, IP address, list of countries and continents names, phone codes, currencies, and more. Country codes returned follow the [ISO 3166-1](http://en.wikipedia.org/wiki/ISO_3166-1) standard.
 
 The user service supports multiple locales. This feature allows you to fetch countries and continents information in your app language. To switch locales, all you need to do is pass the 'X-Appwrite-Locale' header or set the 'setLocale' method using any of our available SDKs. [View here the list of available locales](https://github.com/appwrite/appwrite/blob/master/app/config/locale/codes.php).