diff --git a/src/app/roles/roles-create-edit/RolesCreateEditComponent.ts b/src/app/roles/roles-create-edit/RolesCreateEditComponent.ts
index ae85112..a1d5d45 100644
--- a/src/app/roles/roles-create-edit/RolesCreateEditComponent.ts
+++ b/src/app/roles/roles-create-edit/RolesCreateEditComponent.ts
@@ -296,9 +296,9 @@
       } else {
         this.roleForm.value.permissions = this.roleForm.value.permissions.replace(/'/g, '"');
         const rolePermission: {} = JSON.parse(this.roleForm.value.permissions);
-        for (const key of Object.keys(rolePermission)) {
+        for (const key of Object.values(rolePermission)) {
           // eslint-disable-next-line security/detect-object-injection
-          if (typeof rolePermission[key] !== 'boolean') {
+          if (typeof key !== 'boolean' && key !== null) {
             this.notifierService.notify('error', this.translateService.instant('PAGE.ROLES.ROLEKEYERROR', { roleKey: key }));
             return false;
           }