diff --git a/libs/ardour/io.cc b/libs/ardour/io.cc
index 592d87242e..04a7978ce5 100644
--- a/libs/ardour/io.cc
+++ b/libs/ardour/io.cc
@@ -2613,7 +2613,7 @@ IO::set_gain (gain_t val, void *src)
 
 	if (_session.transport_stopped()) {
 		_effective_gain = val;
-		_gain = val;
+		// _gain = val;
 	}
 
 	gain_changed (src);