diff --git a/libs/ardour/ardour/ardour.h b/libs/ardour/ardour/ardour.h
index 4a7077756b..2c92bbc92a 100644
--- a/libs/ardour/ardour/ardour.h
+++ b/libs/ardour/ardour/ardour.h
@@ -69,8 +69,6 @@ namespace ARDOUR {
 		return (microseconds_t) jack_get_time();
 	}
 
-	static const double SHUTTLE_FRACT_SPEED1=0.48412291827; /* derived from A1,A2 */
-
 	void setup_fpu ();
 }