diff --git a/libs/ardour/session_state.cc b/libs/ardour/session_state.cc
index 0f8583a822..bcb4f3094f 100644
--- a/libs/ardour/session_state.cc
+++ b/libs/ardour/session_state.cc
@@ -2500,7 +2500,7 @@ Session::cleanup_sources (CleanupReport& rep)
 		   capture files.
 		*/
 
-		if (!playlists->source_use_count(i->second) && i->second->length(i->second->timeline_position()) > 0) {
+		if (!i->second->used() && (i->second->length(i->second->timeline_position() > 0))) {
 			dead_sources.push_back (i->second);
 			i->second->drop_references ();
 		}