diff --git a/cmd/sointu-vsti/main.go b/cmd/sointu-vsti/main.go
index 3f44903..a08fc7d 100644
--- a/cmd/sointu-vsti/main.go
+++ b/cmd/sointu-vsti/main.go
@@ -109,7 +109,7 @@ func init() {
 						buf = append(buf, make(sointu.AudioBuffer, out.Frames-len(buf))...)
 					}
 					buf = buf[:out.Frames]
-					player.Process(buf, &context, nil)
+					player.Process(buf, &context)
 					for i := 0; i < out.Frames; i++ {
 						left[i], right[i] = buf[i][0], buf[i][1]
 					}