diff --git a/xCAT-server/share/xcat/netboot/rh/genimage b/xCAT-server/share/xcat/netboot/rh/genimage
index a56e157b6..83087242d 100755
--- a/xCAT-server/share/xcat/netboot/rh/genimage
+++ b/xCAT-server/share/xcat/netboot/rh/genimage
@@ -70,7 +70,7 @@ my $noupdate;
 
 sub xdie {
     system("rm -rf /tmp/xcatinitrd.$$");
-    umount_chroot($rootimage_dir);
+    umount_chroot($rootimg_dir);
     die @_;
 }