diff --git a/models/MoleTask.php b/models/MoleTask.php
index f32dc20..c66f121 100644
--- a/models/MoleTask.php
+++ b/models/MoleTask.php
@@ -108,7 +108,7 @@ class MoleTask extends \yii\db\ActiveRecord
             $model->completed = 0;
             $model->dateStart = null;
             $model->dateEnd = null;
-            $model->dateAdd = date('Y-m-d H:i:s', (strtotime("+$this->period seconds")));
+            $model->dateAdd = date('Y-m-d H:i:s', (strtotime($this->dateAdd . " +$this->period seconds")));
             $model->save();
         }
     }