diff --git a/configure.ac b/configure.ac
index b427a5a..96e0fcb 100644
--- a/configure.ac
+++ b/configure.ac
@@ -206,7 +206,7 @@ dnl ts A90123 - B80508
 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)
 
@@ -288,10 +288,10 @@ AC_SUBST(XATTR_DEF)
 
 dnl ts C40713
 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