diff --git a/src/index.js b/src/index.js
index f0ebeb8..01afef7 100644
--- a/src/index.js
+++ b/src/index.js
@@ -7,7 +7,7 @@ export { capital, title, upper, lower }
 
 export function i18n(store, { dictionary: initialDictionary }) {
   const formatter = new Formatter()
-  let dictionary = {}
+  let dictionary
   let currentLocale
 
   const getLocalizedMessage = (
@@ -94,7 +94,11 @@ export function i18n(store, { dictionary: initialDictionary }) {
     },
   }
 
-  store.i18n.extendDictionary(initialDictionary)
+  if (Array.isArray(initialDictionary)) {
+    dictionary = deepmerge.all(initialDictionary)
+  } else {
+    initialDictionary = dictionary
+  }
 
   return store
 }
diff --git a/test/index.test.js b/test/index.test.js
index f234056..27fc7c6 100644
--- a/test/index.test.js
+++ b/test/index.test.js
@@ -4,7 +4,7 @@ import { i18n } from '../src/index'
 import { Store } from 'svelte/store.umd'
 import { capital, title, upper, lower, isObject } from '../src/utils'
 
-const store = new Store()
+let store = new Store()
 const locales = {
   'pt-br': {
     test: 'teste',
@@ -30,11 +30,8 @@ const locales = {
   },
 }
 
-i18n(store, { dictionary: locales })
+i18n(store, { dictionary: [locales] })
 
-/**
- * Dummy test
- */
 describe('Utilities', () => {
   it('should check if a variable is an object', () => {
     expect(isObject({})).toBe(true)