diff --git a/islandora_fits.install b/islandora_fits.install
index 9e0da0b7..a9473ce7 100644
--- a/islandora_fits.install
+++ b/islandora_fits.install
@@ -22,17 +22,6 @@ function islandora_fits_install($is_syncing) {
     ]));
   }
 
-  // Add xml extension if it doesn't already exist.
-  $field = FieldConfig::load("media.file.field_media_file");
-  if ($field) {
-    $fieldSettings = $field->getSettings();
-    $extensions = $fieldSettings['file_extensions'];
-    if (!strpos($extensions, 'xml')) {
-      $fieldSettings['file_extensions'] .= ' xml';
-      $field->set('settings', $fieldSettings);
-      $field->save();
-    }
-  }
 }
 
 /**