diff --git a/gtk2_ardour/engine_dialog.cc b/gtk2_ardour/engine_dialog.cc
index 74d07b5e94..45af3c5d4f 100644
--- a/gtk2_ardour/engine_dialog.cc
+++ b/gtk2_ardour/engine_dialog.cc
@@ -133,7 +133,7 @@ EngineControl::EngineControl ()
 	AttachOptions  xopt = AttachOptions (FILL | EXPAND);
 	int            row;
 
-	//set_resizable (false);
+	set_resizable (false);
 	set_name (X_("AudioMIDISetup"));
 
 	/* the backend combo is the one thing that is ALWAYS visible */