diff --git a/src/indications.h b/src/indications.h
new file mode 100644
index 0000000..2160aa6
--- /dev/null
+++ b/src/indications.h
@@ -0,0 +1,27 @@
+/*
+    Copyright (C) 2018 Open Networking Foundation 
+
+    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 <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef OPENASF_INDICATIONS_H_
+#define OPENASF_INDICATIONS_H_
+#include <grpc++/grpc++.h>
+#include <openolt.grpc.pb.h>
+#include "Queue.h"
+
+extern Queue<openolt::Indication> oltIndQ;
+extern grpc::Status SubscribeIndication();
+
+#endif