diff --git a/repos/os/include/input/event.h b/repos/os/include/input/event.h
index fb9d355f75..c017976787 100644
--- a/repos/os/include/input/event.h
+++ b/repos/os/include/input/event.h
@@ -41,6 +41,7 @@ namespace Input {
 	struct Touch_release   { Touch_id id; };
 
 	class Event;
+	class Binding;
 }
 
 
@@ -74,6 +75,8 @@ class Input::Event
 		template <typename R, typename T>
 		static Genode::Point<R> _xy(T const &a) { return Genode::Point<R>(a.x, a.y); }
 
+		friend class Input::Binding;
+
 	public:
 
 		/**
diff --git a/repos/os/include/input_session/client.h b/repos/os/include/input_session/client.h
index ec6144612e..af0362b76c 100644
--- a/repos/os/include/input_session/client.h
+++ b/repos/os/include/input_session/client.h
@@ -31,6 +31,8 @@ class Input::Session_client : public Genode::Rpc_client<Session>
 		Genode::size_t const _max_events =
 			_event_ds.size() / sizeof(Input::Event);
 
+		friend class Input::Binding;
+
 	public:
 
 		Session_client(Genode::Region_map &local_rm, Session_capability session)