diff --git a/oap-server/server-core/src/main/resources/oal_ui.oal b/oap-server/server-core/src/main/resources/oal_ui.oal
index 77255524f383017cf40cdcc27aefadea1bcf3cd8..9dd405df3c2a8cdf9c5b2d710c80c6fba44aed22 100644
--- a/oap-server/server-core/src/main/resources/oal_ui.oal
+++ b/oap-server/server-core/src/main/resources/oal_ui.oal
@@ -1,3 +1,21 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You 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.
+#
+#
+
 
 // Dashbard