diff --git a/libsearch/remote-file-event-helper.cpp b/libsearch/remote-file-event-helper.cpp
index 4c8f175..9a6abdd 100644
--- a/libsearch/remote-file-event-helper.cpp
+++ b/libsearch/remote-file-event-helper.cpp
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2024, KylinSoft Co., Ltd.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
 #include "remote-file-event-helper.h"
 #include "rep_fileeventhandler_replica.h"
 
diff --git a/libsearch/remote-file-event-helper.h b/libsearch/remote-file-event-helper.h
index e8dae0c..1857996 100644
--- a/libsearch/remote-file-event-helper.h
+++ b/libsearch/remote-file-event-helper.h
@@ -1,3 +1,20 @@
+/*
+ * Copyright (C) 2024, KylinSoft Co., Ltd.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
 #ifndef REMOTEFILEEVENTHELPER_H
 #define REMOTEFILEEVENTHELPER_H