diff --git a/libs/ardour/session.cc b/libs/ardour/session.cc
index a42f2d4430..c15ae5fa26 100644
--- a/libs/ardour/session.cc
+++ b/libs/ardour/session.cc
@@ -4199,7 +4199,7 @@ Session::end_time_changed (framepos_t old)
 
 	Location* l = _locations->auto_loop_location ();
 
-	if (l->end() == old) {
+	if (l && l->end() == old) {
 		l->set_end (s->end(), true);
 	}
 }