diff --git a/src/conf/alsa.conf b/src/conf/alsa.conf
index 25e2b3a0..e6f90338 100644
--- a/src/conf/alsa.conf
+++ b/src/conf/alsa.conf
@@ -437,6 +437,16 @@ rawmidi.default {
 	}
 }
 
+rawmidi.virt {
+	@args [ MERGE ]
+	@args.MERGE {
+		type string
+		default 1
+	}
+	type virt
+	merge $MERGE
+}
+
 #
 #  Sequencer interface
 #