diff --git a/libs/ardour/audio_unit.cc b/libs/ardour/audio_unit.cc
index 5932b73949..6b6d7ae317 100644
--- a/libs/ardour/audio_unit.cc
+++ b/libs/ardour/audio_unit.cc
@@ -1462,7 +1462,7 @@ AUPlugin::get_musical_time_location_callback (UInt32*   outDeltaSampleOffsetToNe
 		} else {
 			*outDeltaSampleOffsetToNextBeat = (UInt32) 
 				floor (((Timecode::BBT_Time::ticks_per_beat - bbt.ticks)/Timecode::BBT_Time::ticks_per_beat) * // fraction of a beat to next beat
-				       metric.meter().frames_per_division (metric.tempo(), _session.frame_rate())); // frames per beat
+				       metric.tempo().frames_per_beat (_session.frame_rate())); // frames per beat
 		}
 	}