diff --git a/src/Spreadsheet.php b/src/Spreadsheet.php
index 6c2de7a..d315d6c 100644
--- a/src/Spreadsheet.php
+++ b/src/Spreadsheet.php
@@ -3,6 +3,7 @@
 namespace Nikaia\TranslationSheet;
 
 use Illuminate\Support\Str;
+use Nikaia\TranslationSheet\Util;
 use Nikaia\TranslationSheet\Client\Api;
 use Nikaia\TranslationSheet\Sheet\Styles;
 use Nikaia\TranslationSheet\Sheet\TranslationsSheetCoordinates;
@@ -83,6 +84,10 @@ public function getHeader()
     public function getCamelizedHeader()
     {
         return array_map(function ($item) {
+            if (in_array($item, Util::asArray($this->getLocales()))) {
+                return $item;
+            }
+
             return Str::camel($item);
         }, $this->getHeader());
     }
diff --git a/src/TranslationSheetServiceProvider.php b/src/TranslationSheetServiceProvider.php
index a4b1e5c..11fdeeb 100644
--- a/src/TranslationSheetServiceProvider.php
+++ b/src/TranslationSheetServiceProvider.php
@@ -3,6 +3,7 @@
 namespace Nikaia\TranslationSheet;
 
 use Illuminate\Support\ServiceProvider;
+use Nikaia\TranslationSheet\Util;
 use Nikaia\TranslationSheet\Client\Client;
 use Nikaia\TranslationSheet\Commands\Lock;
 use Nikaia\TranslationSheet\Commands\Open;
@@ -48,7 +49,7 @@ private function registerSpreadsheet()
         $this->app->singleton(Spreadsheet::class, function () {
             return new Spreadsheet(
                 $this->app['config']['translation_sheet.spreadsheetId'],
-                $this->asArray($this->app['config']['translation_sheet.locales'])
+                Util::asArray($this->app['config']['translation_sheet.locales'])
             );
         });
     }
@@ -66,15 +67,4 @@ private function registerCommands()
             Open::class,
         ]);
     }
-
-    private function asArray($value)
-    {
-        if (is_array($value)) {
-            return $value;
-        }
-
-        return array_filter(array_map(function ($item) {
-            return trim($item);
-        }, explode(',', $value)));
-    }
 }
diff --git a/src/Util.php b/src/Util.php
index f9efbb7..6fc603a 100644
--- a/src/Util.php
+++ b/src/Util.php
@@ -36,4 +36,15 @@ public static function keyValues($values, $keys)
             return array_combine($keys, $values);
         });
     }
+
+    public static function asArray($value)
+    {
+        if (is_array($value)) {
+            return $value;
+        }
+
+        return array_filter(array_map(function ($item) {
+            return trim($item);
+        }, explode(',', $value)));
+    }
 }