diff --git a/htdocs/user/card.php b/htdocs/user/card.php
index 254a3ea9e75..a30d2c70b21 100644
--- a/htdocs/user/card.php
+++ b/htdocs/user/card.php
@@ -2505,7 +2505,7 @@ if ($action == 'create' || $action == 'adduserldap') {
 							print '<span class="fa '.$value['icon'].' pictofixedwidth"></span>';
 						}
 						if ($caneditfield && empty($object->ldap_sid)) {
-							print '<input type="text" name="'.$key.'" class="flat maxwidth200" value="'.$object->socialnetworks[$key].'">';
+							print '<input type="text" name="'.$key.'" class="flat maxwidth200" value="'.(isset($object->socialnetworks[$key])?$object->socialnetworks[$key]:null).'">';
 						} else {
 							print '<input type="hidden" name="'.$key.'" value="'.$object->socialnetworks[$key].'">';
 							print $object->socialnetworks[$key];
@@ -2513,7 +2513,7 @@ if ($action == 'create' || $action == 'adduserldap') {
 						print '</td></tr>';
 					} else {
 						// if social network is not active but value exist we do not want to loose it
-						print '<input type="hidden" name="'.$key.'" value="'.$object->socialnetworks[$key].'">';
+						print '<input type="hidden" name="'.$key.'" value="'.(isset($object->socialnetworks[$key])?$object->socialnetworks[$key]:null).'">';
 					}
 				}
 			}