diff --git a/libs/ardour/audio_library.cc b/libs/ardour/audio_library.cc
index 4d78bdac86..f19f8a7e98 100644
--- a/libs/ardour/audio_library.cc
+++ b/libs/ardour/audio_library.cc
@@ -78,8 +78,13 @@ void
 AudioLibrary::save_changes ()
 {
 #ifdef HAVE_LRDF
-	if (lrdf_export_by_source(src.c_str(), src.substr(5).c_str())) {
-		PBD::warning << string_compose(_("Could not open %1.  Audio Library not saved"), src) << endmsg;
+#ifdef PLATFORM_WINDOWS
+	string path = Glib::locale_from_utf8 (Glib::filename_from_uri(src));
+#else
+	string path = Glib::filename_from_uri(src);
+#endif
+	if (lrdf_export_by_source(src.c_str(), path.c_str())) {
+		PBD::warning << string_compose(_("Could not open %1.  Audio Library not saved"), path) << endmsg;
 	}
 #endif
 }