diff --git a/libs/surfaces/mackie/surface.cc b/libs/surfaces/mackie/surface.cc
index f1f308209c..da22909d26 100644
--- a/libs/surfaces/mackie/surface.cc
+++ b/libs/surfaces/mackie/surface.cc
@@ -14,6 +14,7 @@
 #include "ardour/panner_shell.h"
 #include "ardour/rc_configuration.h"
 #include "ardour/session.h"
+#include "ardour/utils.h"
 
 #include "control_group.h"
 #include "surface_port.h"
@@ -330,6 +331,7 @@ Surface::handle_midi_pitchbend_message (MIDI::Parser&, MIDI::pitchbend_t pb, uin
 		Strip* strip = dynamic_cast<Strip*> (&fader->group());
 		float pos = (pb >> 4)/1023.0; // only the top 10 bytes are used
 		if (strip) {
+			std::cerr << "New fader position " << pos << " SPtG = " << slider_position_to_gain (pos) << std::endl;
 			strip->handle_fader (*fader, pos);
 		} else {
 			/* master fader */