diff --git a/mappers/filefield.inc b/mappers/filefield.inc
index 1e8c59f..caf0012 100644
--- a/mappers/filefield.inc
+++ b/mappers/filefield.inc
@@ -56,8 +56,19 @@ function filefield_feeds_set_target($node, $field_name, $value) {
     }
   }
 
+  // Clear existing values from the node.
+  if (!empty($node->$field_name)) {
+    foreach ($node->$field_name as $file) {
+      // Delete the file.
+      file_delete($file['filepath']);
+      // Remove the entry from the {files} table.
+      db_query('DELETE FROM {files} WHERE fid=%d', $file['fid']);
+    }
+  }
+  $node->$field_name = array();
+
   // Map enclosures.
-  $items = isset($node->$field_name) ? $node->$field_name : array();
+  $items = array();
   foreach ($enclosures as $enclosure) {
     if ($file = $enclosure->getFile()) {
       $field = content_fields($field_name, $node->type);