diff --git a/ChangeLog b/ChangeLog
index fb44b35c6..c6a355f1f 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,7 @@
 2009-06-08  Oliver Henshaw <oliver.henshaw@gmail.com>
 
+	* bus/usb/ohci.c: Set interf with correct field.
+
 	* bus/usb/uhci.c: Remove unneeded doubled lines.
 	* bus/usb/ohci.c: Likewise. Change interf to grub_uint32_t.
 	Remove whitespace inside comment.
diff --git a/bus/usb/ohci.c b/bus/usb/ohci.c
index 55df96ea2..180f4dd41 100644
--- a/bus/usb/ohci.c
+++ b/bus/usb/ohci.c
@@ -128,7 +128,7 @@ grub_ohci_pci_iter (int bus, int device, int func,
   addr = grub_pci_make_address (bus, device, func, 2);
   class = grub_pci_read (addr);
 
-  interf = class & 0xFF;
+  interf = (class >> 8) & 0xFF;
   subclass = (class >> 16) & 0xFF;
   class >>= 24;