diff --git a/xCAT-nbroot/xcat-core-nbroot.spec b/xCAT-nbroot/xcat-core-nbroot.spec
index 5f46bd352..69ecab7be 100644
--- a/xCAT-nbroot/xcat-core-nbroot.spec
+++ b/xCAT-nbroot/xcat-core-nbroot.spec
@@ -1,6 +1,6 @@
 %define epoch   0
 %define version	2.0
-%ifarch i386 i586 i686
+%ifarch i386 i586 i686 x86
 %define tarch x86
 %endif
 %ifarch x86_64