diff --git a/libs/ardour/ardour/automation_list.h b/libs/ardour/ardour/automation_list.h
index e7377d6b02..71eddda6dd 100644
--- a/libs/ardour/ardour/automation_list.h
+++ b/libs/ardour/ardour/automation_list.h
@@ -96,7 +96,7 @@ class AutomationList : public PBD::StatefulDestructible, public Evoral::ControlL
 
 	void start_touch (double when);
 	void stop_touch (bool mark, double when);
-	bool touching() const { return g_atomic_int_get (&_touching); }
+        bool touching() const { return g_atomic_int_get (const_cast<gint*>(&_touching)); }
 	bool writing() const { return _state == Write; }
 	bool touch_enabled() const { return _state == Touch; }
 
diff --git a/libs/ardour/ardour/session.h b/libs/ardour/ardour/session.h
index f359411846..507f25b118 100644
--- a/libs/ardour/ardour/session.h
+++ b/libs/ardour/ardour/session.h
@@ -1075,7 +1075,7 @@ class Session : public PBD::StatefulDestructible, public PBD::ScopedConnectionLi
 				PostTransportClearSubstate);
 
 	gint _post_transport_work; /* accessed only atomic ops */
-	PostTransportWork post_transport_work() const        { return (PostTransportWork) g_atomic_int_get (&_post_transport_work); }
+        PostTransportWork post_transport_work() const        { return (PostTransportWork) g_atomic_int_get (const_cast<gint*>(&_post_transport_work)); }
 	void set_post_transport_work (PostTransportWork ptw) { g_atomic_int_set (&_post_transport_work, (gint) ptw); }
 	void add_post_transport_work (PostTransportWork ptw);