diff --git a/etc/drivers.conf b/etc/drivers.conf
index 1bd40160a..8abc793f9 100644
--- a/etc/drivers.conf
+++ b/etc/drivers.conf
@@ -238,6 +238,7 @@ driver at_wini
 	;
 	pci class	
 		1/1		# Mass storage / IDE
+		1/4		# Mass storage / RAID
 	;
 };