diff --git a/entityreference.feeds.inc b/entityreference.feeds.inc
index 3f64141..731918d 100644
--- a/entityreference.feeds.inc
+++ b/entityreference.feeds.inc
@@ -117,6 +117,7 @@ function entityreference_feeds_set_target($source, $entity, $target, $value) {
           $entity_id = db_select('feeds_item', 'fi')
             ->fields('fi', array('entity_id'))
             ->condition($match_key, $value,'=')
+            ->addTag('entityreference_feeds_lookup') // Allow other modules modify the query.
             ->execute()
             ->fetchField();
           break;