diff --git a/src/Classes/ExportLocalizations.php b/src/Classes/ExportLocalizations.php
index 7be7a3f..b488ac9 100644
--- a/src/Classes/ExportLocalizations.php
+++ b/src/Classes/ExportLocalizations.php
@@ -44,7 +44,7 @@ class ExportLocalizations implements \JsonSerializable
      * @param string $phpRegex
      * @param string $jsonRegex
      */
-    public function __construct($phpRegex, $jsonRegex)
+    public function __construct($phpRegex = '/^.+\.php$/i', $jsonRegex = '/^.+\.json$/i')
     {
         $this->phpRegex = $phpRegex;
         $this->jsonRegex = $jsonRegex;
diff --git a/src/LaravelLocalizationServiceProvider.php b/src/LaravelLocalizationServiceProvider.php
index 2cd26a3..10bd699 100644
--- a/src/LaravelLocalizationServiceProvider.php
+++ b/src/LaravelLocalizationServiceProvider.php
@@ -18,8 +18,8 @@ class LaravelLocalizationServiceProvider extends ServiceProvider
     public function boot()
     {
         $this->app->bind('export-localization', function () {
-            $phpRegex = config('laravel-localization.file_regexp.php');
-            $jsonRegex = config('laravel-localization.file_regexp.json');
+            $phpRegex = config('laravel-localization.file_regexp.php', '/^.+\.php$/i');
+            $jsonRegex = config('laravel-localization.file_regexp.json', '/^.+\.json$/i');
 
             return new ExportLocalizations($phpRegex, $jsonRegex);
         });