diff --git a/src/QimenWms.php b/src/QimenWms.php
index 1bca641..5ba935a 100644
--- a/src/QimenWms.php
+++ b/src/QimenWms.php
@@ -639,7 +639,7 @@ class QimenWms extends BaseWms implements WmsInterface
         return [
             'content' => $body,
             'status' => 200,
-            'headers' => ['Content-Type' => 'xml'],
+            'headers' => ['Content-Type' => 'utf-8'],
         ];
     }
 }