diff --git a/application/src/main/java/org/thingsboard/server/service/install/EntityDatabaseSchemaService.java b/application/src/main/java/org/thingsboard/server/service/install/EntityDatabaseSchemaService.java
index 1d0ddc3..c215ea0 100644
--- a/application/src/main/java/org/thingsboard/server/service/install/EntityDatabaseSchemaService.java
+++ b/application/src/main/java/org/thingsboard/server/service/install/EntityDatabaseSchemaService.java
@@ -1,3 +1,18 @@
+/**
+ * Copyright © 2016-2018 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.
+ */
package org.thingsboard.server.service.install;
public interface EntityDatabaseSchemaService extends DatabaseSchemaService {
diff --git a/application/src/main/java/org/thingsboard/server/service/install/TsDatabaseSchemaService.java b/application/src/main/java/org/thingsboard/server/service/install/TsDatabaseSchemaService.java
index d95166f..0a2ba75 100644
--- a/application/src/main/java/org/thingsboard/server/service/install/TsDatabaseSchemaService.java
+++ b/application/src/main/java/org/thingsboard/server/service/install/TsDatabaseSchemaService.java
@@ -1,3 +1,18 @@
+/**
+ * Copyright © 2016-2018 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.
+ */
package org.thingsboard.server.service.install;
public interface TsDatabaseSchemaService extends DatabaseSchemaService {
