diff --git a/src/conf/cards/PMacToonie.conf b/src/conf/cards/PMacToonie.conf
index 8c6777ca..498b140f 100644
--- a/src/conf/cards/PMacToonie.conf
+++ b/src/conf/cards/PMacToonie.conf
@@ -28,6 +28,7 @@ PMacToonie.pcm.default {
 		type string
 	}
 	type asym
+	playback.pcm {
 		type plug
 		slave.pcm {
 			type softvol