diff --git a/libs/ardour/session_transport.cc b/libs/ardour/session_transport.cc
index 6881daf561..a23261834d 100644
--- a/libs/ardour/session_transport.cc
+++ b/libs/ardour/session_transport.cc
@@ -76,6 +76,10 @@ Session::request_slave_source (SlaveSource src)
 void
 Session::request_transport_speed (float speed)
 {
+	if (speed != 0.0 && speed != 1.0) {
+		cerr << "odd speed requested\n";
+		stacktrace (cerr, 20);
+	}
 	Event* ev = new Event (Event::SetTransportSpeed, Event::Add, Event::Immediate, 0, speed);
 	queue_event (ev);
 }
@@ -816,7 +820,6 @@ Session::set_transport_speed (float speed, bool abort)
 
 		if ((synced_to_jack()) && speed != 0.0 && speed != 1.0) {
 			cerr << "synced to jack and speed == " << speed << endl;
-			stacktrace (cerr, 20);
 			warning << _("Global varispeed cannot be supported while Ardour is connected to JACK transport control")
 				<< endmsg;
 			return;