diff --git a/ChangeLog b/ChangeLog
index 04ffaecc8..9104a46fb 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2012-12-11  Vladimir Serbinenko  <phcoder@gmail.com>
+
+	* util/grub.d/20_linux_xen.in: Addmissing assignment to machine.
+	Reported by: Eriks Latosheks <foresterlv>.
+
 2012-12-10  Vladimir Serbinenko  <phcoder@gmail.com>
 
 	* docs/grub.texi (Network): Update instructions on generating netboot
diff --git a/util/grub.d/20_linux_xen.in b/util/grub.d/20_linux_xen.in
index d4d01100e..ac05ee447 100644
--- a/util/grub.d/20_linux_xen.in
+++ b/util/grub.d/20_linux_xen.in
@@ -174,6 +174,8 @@ boot_device_id=
 
 title_correction_code=
 
+machine=`uname -m`
+
 case "$machine" in
     i?86) GENKERNEL_ARCH="x86" ;;
     mips|mips64) GENKERNEL_ARCH="mips" ;;