diff --git a/theme/views_data_export.theme.inc b/theme/views_data_export.theme.inc
index 4e31fb0..0509d75 100644
--- a/theme/views_data_export.theme.inc
+++ b/theme/views_data_export.theme.inc
@@ -461,7 +461,9 @@ function template_preprocess_views_data_export_xml_body(&$vars) {
           $vars['xml_tag'][$field] = str_replace(' ', '', ucwords(strtolower($header)));
           break;
       }
-    }
+    } else {
+        $vars['xml_tag'][$field] = $header;
+      }
     // We should always try to output valid XML.
     $vars['xml_tag'][$field] = _views_data_export_xml_tag_clean($vars['xml_tag'][$field]);
   }