diff --git a/board/impa7/impa7.c b/board/impa7/impa7.c
index 12eb0db..e496923 100644
--- a/board/impa7/impa7.c
+++ b/board/impa7/impa7.c
@@ -40,7 +40,7 @@
 	IO_LEDFLSH = 0x40;
 
 	/* arch number of EP7111 */
-	gd->bd->bi_arch_number = 50;
+	gd->bd->bi_arch_number = MACH_TYPE_EDB7211;
 
 	/* location of boot parameters for EP7111 */
 	gd->bd->bi_boot_params = 0xc0020100;