diff --git a/sys/dev/sound/pci/maestro.c b/sys/dev/sound/pci/maestro.c
index a465d5c33533..60afaa5b3d1c 100644
--- a/sys/dev/sound/pci/maestro.c
+++ b/sys/dev/sound/pci/maestro.c
@@ -73,7 +73,7 @@
 # define AGG_MAXPLAYCH	4
 #endif
 
-#define AGG_BUFSIZ	4096
+#define AGG_BUFSIZ	0x4000 /* 0x1000, but gets underflows */
 
 
 /* -----------------------------