diff --git a/routes/services/invisiblepuzzle/invisiblepuzzle.js b/routes/services/invisiblepuzzle/invisiblepuzzle.js
index c9c0df4d23c50bdd4f161e25e13a97f0a1f6433c..2f20088b1b9524598e66ca76d3f88ceba93b910d 100644
--- a/routes/services/invisiblepuzzle/invisiblepuzzle.js
+++ b/routes/services/invisiblepuzzle/invisiblepuzzle.js
@@ -103,8 +103,6 @@ router.get('/users/count', function(req, res, next) {
 router.get('/users/vib', function(req, res, next) {
 
     var cursor = user_ids_cursor(true);
-
-    cursor.map( function(d) { return d['_id']; } );
     return_cursor(cursor, req, res, next);
 
 });