diff --git a/README.md b/README.md
index a195fff..c9ea28c 100644
--- a/README.md
+++ b/README.md
@@ -19,10 +19,13 @@ npm i @paunovic/random-words
 ```js
 import { initialize } from '@paunovic/random-words'
 
-// Default language pack
+// Initialization with default language pack
+const RANDOM = initialize();
+
+// Initialization with different language pack
 const RANDOM = initialize({ countryCode: 'rs' })
 
-// With variation
+// Initialization with different language pack, including variation
 const RANDOM = initialize({ countryCode: 'rs', variation: 'cyrillic' })
 ```
 
@@ -31,9 +34,11 @@ Currently available country codes and variations:
 | Country       | Country code | Variation  |
 | :------------ | :----------: | :--------: |
 | Serbia        | `rs`         | `cyrillic` |
-| United States | `us`         |            |
+| United States `*` | `us`         |            |
 | Spain         | `es`         |            |
 
+`*` Default language; if no `countryCode` parameter is passed to `initialize` method, english will be loaded as a default language.
+
 ## Methods
 
 ```js
diff --git a/lib/index.js b/lib/index.js
index 7074a67..b773c78 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -16,9 +16,7 @@ import { randomNumber } from './helpers/general.js';
 	*
 	*/
 
-export const initialize = ({ countryCode, variation = 'default' }) => {
-	if (!countryCode) throw new Error('Missing parameter countryCode.');
-
+export const initialize = ({ countryCode = 'us', variation = 'default' }) => {
 	const WORDS = LANGUAGES[countryCode][variation];
 
 	/**
diff --git a/package-lock.json b/package-lock.json
index dfcdbcc..187eb31 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
 	"name": "@paunovic/random-words",
-	"version": "1.2.0",
+	"version": "1.2.1",
 	"lockfileVersion": 2,
 	"requires": true,
 	"packages": {
 		"": {
 			"name": "@paunovic/random-words",
-			"version": "1.2.0",
+			"version": "1.2.1",
 			"license": "MIT",
 			"devDependencies": {
 				"chai": "^4.3.6",
diff --git a/package.json b/package.json
index 1120684..8f7fee9 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
 	"name": "@paunovic/random-words",
-	"version": "1.2.0",
+	"version": "1.2.1",
 	"type": "module",
 	"description": "Serving random words in any language has never been this easy.",
 	"author": {