--- libs/ardour/plugin_manager.cc~	2006-04-26 08:44:34.000000000 -0700
+++ libs/ardour/plugin_manager.cc	2006-05-13 09:18:00.000000000 -0700
@@ -107,7 +107,7 @@
 	_ladspa_plugin_info.clear ();
 
 	if (ladspa_path.length() == 0) {
-		ladspa_path = "/usr/local/lib/ladspa:/usr/lib/ladspa";
+		ladspa_path = "/usr/local/lib64/ladspa:/usr/lib64/ladspa";
 	}
 
 	ladspa_discover_from_path (ladspa_path);