diff --git a/frontend/app/models/absence-credit.js b/frontend/app/models/absence-credit.js
index bcf389326..9debf7843 100644
--- a/frontend/app/models/absence-credit.js
+++ b/frontend/app/models/absence-credit.js
@@ -51,5 +51,5 @@ export default class AbsenceCredit extends Model {
    * @property {User} user
    * @public
    */
-  @belongsTo("user", { async: true, inverse: null }) user;
+  @belongsTo("user", { async: false, inverse: null }) user;
 }
diff --git a/frontend/app/models/overtime-credit.js b/frontend/app/models/overtime-credit.js
index 76fd92a4c..ba06c6308 100644
--- a/frontend/app/models/overtime-credit.js
+++ b/frontend/app/models/overtime-credit.js
@@ -4,5 +4,5 @@ export default class OvertimeCredit extends Model {
   @attr("django-date") date;
   @attr("django-duration") duration;
   @attr("string", { defaultValue: "" }) comment;
-  @belongsTo("user", { async: true, inverse: null }) user;
+  @belongsTo("user", { async: false, inverse: null }) user;
 }