diff --git a/libs/ardour/ardour/ardour.h b/libs/ardour/ardour/ardour.h
index 8349b6f14b..1b9725a04c 100644
--- a/libs/ardour/ardour/ardour.h
+++ b/libs/ardour/ardour/ardour.h
@@ -51,8 +51,6 @@ namespace ARDOUR {
 	
 	std::string get_ardour_revision ();
 
-	const layer_t max_layer = UCHAR_MAX;
-
 	microseconds_t get_microseconds ();
 
 	Change new_change ();