diff --git a/src/conf/pcm/dmix.conf b/src/conf/pcm/dmix.conf
index ebdb6c2d..b505be2c 100644
--- a/src/conf/pcm/dmix.conf
+++ b/src/conf/pcm/dmix.conf
@@ -18,7 +18,7 @@ pcm.!dmix {
 	}
 	@args.FORMAT {
 		type string
-		default S16
+		default S16_LE
 	}
 	@args.RATE {
 		type integer