diff --git a/htdocs/user/card.php b/htdocs/user/card.php
index 7fc268568c8..7f8959975f6 100644
--- a/htdocs/user/card.php
+++ b/htdocs/user/card.php
@@ -537,6 +537,9 @@ if (empty($reshook)) {
 						$sql .= " SET fk_socpeople=".((int) $contactid);
 						if (!empty($contact->socid)) {
 							$sql .= ", fk_soc=".((int) $contact->socid);
+						} elseif($socid > 0){
+							$sql .= ", fk_soc=''";
+							setEventMessages($langs->trans("WarningUserDifferentContactSocid"),'','warnings'); // Add message if post socid != $contact->socid
 						}
 						$sql .= " WHERE rowid = ".((int) $object->id);
 					} elseif ($socid > 0) {