diff --git a/stand/libsa/stand.h b/stand/libsa/stand.h
--- a/stand/libsa/stand.h
+++ b/stand/libsa/stand.h
@@ -139,8 +139,9 @@
 /* 
  * Device switch
  */
+#define DEV_NAMLEN	8		/* Length of name of device class */
 struct devsw {
-    const char	dv_name[8];
+    const char	dv_name[DEV_NAMLEN];
     int		dv_type;		/* opaque type constant, arch-dependant */
 #define DEVT_NONE	0
 #define DEVT_DISK	1