diff --git a/public_html/deployment/classes/rollout_base.class.php b/public_html/deployment/classes/rollout_base.class.php
index b51b0fd04e2244139b412172948b04aeaa04e5b2..51c8582dd77ef09c41a5f9a215a9c193e87192fa 100644
--- a/public_html/deployment/classes/rollout_base.class.php
+++ b/public_html/deployment/classes/rollout_base.class.php
@@ -295,7 +295,8 @@ class rollout_base implements iRolloutplugin
                             $aCallbackData[$aEffectiveConfig[$sVarname]]['checked'] = 'checked';
                             $aCallbackData[$aEffectiveConfig[$sVarname]]['label'] .= ' ««';
                         } elseif ($aVarinfos['type'] === 'select') {
-                            $aCallbackData = array_merge(['NO_SELECTED_ITEM_YET' => ['value' => '', 'label' => '...']], $aCallbackData);
+                            // not needed with bootstrap-select
+                            // $aCallbackData = array_merge(['NO_SELECTED_ITEM_YET' => ['value' => '', 'label' => '...']], $aCallbackData);
                         }
 
                         // wenn value = defaultvalue, dann value auf '' setzen (damit bei Default vom Scope