diff --git a/models/User.php b/models/User.php
index 4c6aa2b..5e711cf 100644
--- a/models/User.php
+++ b/models/User.php
@@ -168,6 +168,10 @@ class User {
             $stmt2->bindParam(":partner_id", $partner_id);
             $stmt2->execute();
 
+            // 2. On repasse TOUS leurs films en mode perso (is_common = 0)
+            $stmt = $this->db->prepare("UPDATE movies SET is_common = 0 WHERE user_id IN (?, ?)");
+            $stmt->execute([$userId, $partnerId]);
+
             $this->conn->commit();
             return ["success" => true, "message" => "Comptes déliés avec succès."];
         } catch (Exception $e) {