diff --git a/drivers/net/sun3lance.c b/drivers/net/sun3lance.c
index 1f43bbf..5c8fcd4 100644
--- a/drivers/net/sun3lance.c
+++ b/drivers/net/sun3lance.c
@@ -162,7 +162,7 @@
 #define	MEM	lp->mem
 #define	DREG	lp->iobase[0]
 #define	AREG	lp->iobase[1]
-#define	REGA(a)	( AREG = (a), DREG )
+#define	REGA(a)	(*( AREG = (a), &DREG ))
 
 /* Definitions for the Lance */