--- plugins/FeedsUserProcessor.inc	2009-11-02 20:26:57.000000000 +0000
+++ /var/www/localhost/feeds.20091124/plugins/FeedsUserProcessor.inc	2009-11-23 15:30:44.000000000 +0000
@@ -179,10 +179,10 @@ class FeedsUserProcessor extends FeedsPr
     foreach ($this->uniqueTargets($source_item) as $target => $value) {
       switch ($target) {
         case 'name':
-          $nid = db_result(db_query('SELECT uid FROM {users} WHERE name = "%s"', $value));
+          $nid = db_result(db_query('SELECT uid FROM {users} WHERE name = \'%s\'', $value));
           break;
         case 'mail':
-          $nid = db_result(db_query('SELECT uid FROM {users} WHERE mail = "%s"', $value));
+          $nid = db_result(db_query('SELECT uid FROM {users} WHERE mail = \'%s\'', $value));
           break;
       }
       if ($nid) {
@@ -192,4 +192,4 @@ class FeedsUserProcessor extends FeedsPr
     }
     return 0;
   }
-}
\ No newline at end of file
+}