diff --git a/libs/ardour/ardour/session.h b/libs/ardour/ardour/session.h
index 36ca4b4774..68e60ad807 100644
--- a/libs/ardour/ardour/session.h
+++ b/libs/ardour/ardour/session.h
@@ -1105,10 +1105,10 @@ public:
 		PostTransportRoll               = 0x8,
 		PostTransportAbort              = 0x10,
 		PostTransportOverWrite          = 0x20,
-		/* was ... PostTransportSpeed              = 0x40, */
+		/* PostTransportSpeed           = 0x40, */
 		PostTransportAudition           = 0x80,
 		PostTransportReverse            = 0x100,
-		PostTransportInputChange        = 0x200,
+		/* PostTransportInputChange     = 0x200, */
 		PostTransportCurveRealloc       = 0x400,
 		PostTransportClearSubstate      = 0x800,
 		PostTransportAdjustPlaybackBuffering  = 0x1000,
@@ -1413,7 +1413,6 @@ private:
 
 	static const PostTransportWork ProcessCannotProceedMask =
 		PostTransportWork (
-			PostTransportInputChange|
 			PostTransportReverse|
 			PostTransportCurveRealloc|
 			PostTransportAudition|
diff --git a/libs/ardour/enums.cc b/libs/ardour/enums.cc
index ab7f0b63fc..8ae2134ce2 100644
--- a/libs/ardour/enums.cc
+++ b/libs/ardour/enums.cc
@@ -461,7 +461,6 @@ setup_enum_writer ()
 	REGISTER_CLASS_ENUM (Session, PostTransportOverWrite);
 	REGISTER_CLASS_ENUM (Session, PostTransportAudition);
 	REGISTER_CLASS_ENUM (Session, PostTransportReverse);
-	REGISTER_CLASS_ENUM (Session, PostTransportInputChange);
 	REGISTER_CLASS_ENUM (Session, PostTransportCurveRealloc);
 	REGISTER_CLASS_ENUM (Session, PostTransportClearSubstate);
 	REGISTER_BITS (_Session_PostTransportWork);