diff --git a/src/i18n/config.js b/src/i18n/config.js
deleted file mode 100644
index 8ba6a96e0..000000000
--- a/src/i18n/config.js
+++ /dev/null
@@ -1,23 +0,0 @@
-import en from './locale/en';
-
-export default {
-  // Locale value
-  locale: 'en',
-
-  // Fallback locale
-  localeFallback: 'en',
-
-  // Detect locale by checking browser language
-  detectLocale: true,
-
-  // Show warnings when some of the i18n resources are missing
-  debug: false,
-
-  // Messages to translate
-  messages: {
-    en,
-  },
-
-  // Additional messages. This allows extending the default `messages` set directly from the configuration.
-  messagesAdd: null,
-};
diff --git a/src/i18n/config.ts b/src/i18n/config.ts
new file mode 100644
index 000000000..13e562cec
--- /dev/null
+++ b/src/i18n/config.ts
@@ -0,0 +1,49 @@
+import en from './locale/en';
+
+export interface I18nConfig {
+  /**
+   * Locale value.
+   * @default 'en'
+   */
+  locale?: string;
+
+  /**
+   * Fallback locale.
+   * @default 'en'
+   */
+  localeFallback?: string;
+
+  /**
+   * Detect locale by checking browser language.
+   * @default true
+   */
+  detectLocale?: boolean;
+
+  /**
+   * Show warnings when some of the i18n resources are missing.
+   * @default false
+   */
+  debug?: boolean;
+
+  /**
+   * Messages to translate.
+   * @default { en: {...} }
+   */
+  messages?: Record<string, any>;
+
+  /**
+   * Additional messages. This allows extending the default `messages` set directly from the configuration.
+   */
+  messagesAdd?: Record<string, any>;
+}
+
+const config: I18nConfig = {
+  locale: 'en',
+  localeFallback: 'en',
+  detectLocale: true,
+  debug: false,
+  messages: { en },
+  messagesAdd: undefined,
+};
+
+export default config;