diff --git a/Layout/default/Preorder/include/preorder-detail.php b/Layout/default/Preorder/include/preorder-detail.php
index 374d95f6c..f04074294 100644
--- a/Layout/default/Preorder/include/preorder-detail.php
+++ b/Layout/default/Preorder/include/preorder-detail.php
@@ -75,9 +75,9 @@
                       </tr><tr>
                         <th>Bestelldatum:</th>
                         <td>
-                            <span id="preorder-detail-orderdate-<?=$preorder->id?>-text" data-orderdate="<?=$preorder->order_date?>"><span id="preorder-detail-orderdate-<?=$preorder->id?>-textpart"><?=date("d.m.Y",$preorder->order_date)?></span> <a href="#" onclick="return toggleOrderdateControl(<?=$preorder->id?>)"><i class="fas fa-fw fa-edit"></i></a></span>
+                            <span id="preorder-detail-orderdate-<?=$preorder->id?>-text" data-orderdate="<?=$preorder->order_date?>"><span id="preorder-detail-orderdate-<?=$preorder->id?>-textpart"><?=($preorder->order_date) ? date("d.m.Y",$preorder->order_date) : ""?></span> <a href="#" onclick="return toggleOrderdateControl(<?=$preorder->id?>)"><i class="fas fa-fw fa-edit"></i></a></span>
                             <div class="input-group" id="preorder-detail-orderdate-<?=$preorder->id?>-input" style="display:none">
-                                <input type="text" class="form-control datepicker" value="<?=date("d.m.Y",$preorder->order_date)?>" />
+                                <input type="text" class="form-control datepicker" value="<?=($preorder->order_date) ? date("d.m.Y",$preorder->order_date) : ""?>" />
                                 <div class="input-group-append">
                                     <button type="button" class="btn btn-primary" title="Speichern" onclick="savePreorderOrderdateControl(<?=$preorder->id?>)"><i class="fas fa-check"></i></button>
                                     <button type="button" class="btn btn-secondary" title="Abbrechen" onclick="toggleOrderdateControl(<?=$preorder->id?>)"><i class="fas fa-times"></i></button>