diff --git a/bsp/sifive-hifive-unmatched/design.svd b/bsp/sifive-hifive-unmatched/design.svd
index bee80e4b..66a35f52 100644
--- a/bsp/sifive-hifive-unmatched/design.svd
+++ b/bsp/sifive-hifive-unmatched/design.svd
@@ -4,7 +4,7 @@
   <version>0.1</version>
   <description>From sifive,hifive-unmatched-a00,model device generator</description>
   <addressUnitBits>8</addressUnitBits>
-  <width>32</width>
+  <width>64</width>
   <size>32</size>
   <access>read-write</access>
   <peripherals>
@@ -2797,4 +2797,4 @@
       </registers>
     </peripheral>
   </peripherals>
-</device>
\ No newline at end of file
+</device>