diff --git a/addons/mail/static/src/model/model_field.js b/addons/mail/static/src/model/model_field.js
index 4e4572d824e..6fe7514166b 100644
--- a/addons/mail/static/src/model/model_field.js
+++ b/addons/mail/static/src/model/model_field.js
@@ -372,7 +372,7 @@ export class ModelField {
                         }
                         break;
                     case 'unlink-all':
-                        if (this._setRelationUnlink(record, this.read(record), options)) {
+                        if (this._setRelationUnlink(record, this.get(record), options)) {
                             hasChanged = true;
                         }
                         break;