diff --git a/ui-ngx/src/app/shared/directives/public-api.ts b/ui-ngx/src/app/shared/directives/public-api.ts
index 08431abb28..6f25320d90 100644
--- a/ui-ngx/src/app/shared/directives/public-api.ts
+++ b/ui-ngx/src/app/shared/directives/public-api.ts
@@ -1,2 +1,18 @@
+///
+/// Copyright © 2016-2024 The Thingsboard Authors
+///
+/// Licensed under the Apache License, Version 2.0 (the "License");
+/// you may not use this file except in compliance with the License.
+/// You may obtain a copy of the License at
+///
+///     http://www.apache.org/licenses/LICENSE-2.0
+///
+/// Unless required by applicable law or agreed to in writing, software
+/// distributed under the License is distributed on an "AS IS" BASIS,
+/// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+/// See the License for the specific language governing permissions and
+/// limitations under the License.
+///
+
 export * from './truncate-with-tooltip.directive';
 export * from './ellipsis-chip-list.directive';