diff --git a/xorriso/configure_ac.txt b/xorriso/configure_ac.txt
index 3d051f23..f730cfdf 100644
--- a/xorriso/configure_ac.txt
+++ b/xorriso/configure_ac.txt
@@ -275,7 +275,7 @@ AH_TEMPLATE([Libisofs_with_freebsd_extattR],
 AC_ARG_ENABLE(xattr,
               [  --enable-xattr          Enable use of extended file attributes by libisofs, default=yes],
               , enable_xattr=yes)
-AC_ARG_ENABLE(xattr_h_pref_attr,
+AC_ARG_ENABLE(xattr-h-pref-attr,
               [  --enable-xattr-h-pref-attr   Prefer include file attr/xattr.h over sys/xattr.h, default=no],
               , enable_xattr_h_pref_attr=no)
 
@@ -357,10 +357,10 @@ dnl ts C40722
 AH_TEMPLATE([Libisofs_with_aaip_lfa_flagS],
             [Define to use Linux chattr capabilities])
 LFA_DEF=
-AC_ARG_ENABLE(linux-attr-flags,
-[  --enable-linux-attr-flags   Enable processing of Linux chattr(1) flags, default=yes],
-               , linux_attr_flags=yes)
-if test x"$linux_attr_flags" = xyes; then
+AC_ARG_ENABLE(lfa-flags,
+[  --enable-lfa-flags   Enable processing of Linux chattr(1) flags, default=yes],
+               , enable_lfa_flags=yes)
+if test x"$enable_lfa_flags" = xyes; then
     AC_CHECK_HEADER(linux/fs.h, LFA_DEF="-DLibisofs_with_aaip_lfa_flagS",
                     LFA_DEF=)
 fi