diff --git a/alfa-client/libs/admin/settings/src/lib/users-roles/user-add-form/user-add-form.service.ts b/alfa-client/libs/admin/settings/src/lib/users-roles/user-add-form/user-add-form.service.ts
index c62a13582acc0eef0685e212995f82cc487e40e4..f497893d00505e06c0170387a582f9d27fa35745 100644
--- a/alfa-client/libs/admin/settings/src/lib/users-roles/user-add-form/user-add-form.service.ts
+++ b/alfa-client/libs/admin/settings/src/lib/users-roles/user-add-form/user-add-form.service.ts
@@ -71,7 +71,7 @@ export class UserAddFormService extends AbstractFormService {
 
   disableUncheckedCheckboxes(alfaGroup: UntypedFormGroup): void {
     for (const control of Object.values<AbstractControl>(alfaGroup.controls)) {
-      if (!control.value) control.disable({ emitEvent: false });
+      if (control.value === false) control.disable({ emitEvent: false });
     }
   }