diff --git a/libs/temporal/tempo.cc b/libs/temporal/tempo.cc
index b1666b73ac..e2dfb96d23 100644
--- a/libs/temporal/tempo.cc
+++ b/libs/temporal/tempo.cc
@@ -2963,6 +2963,8 @@ TempoMap::previous_tempo (TempoPoint const & point) const
 		return 0;
 	}
 
+	--i;
+
 	return &(*i);
 }