diff --git a/configure.ac b/configure.ac
index a367735..633f27d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,4 +1,4 @@
-AC_INIT([libisofs], [0.2.3], [http://libburn.pykix.org])
+AC_INIT([libisofs], [0.2.4], [http://libburnia.pykix.org])
 AC_PREREQ([2.50])
 dnl AC_CONFIG_HEADER([config.h])	
 
@@ -63,8 +63,9 @@ AC_C_BIGENDIAN
 dnl Large file support
 AC_SYS_LARGEFILE
 AC_FUNC_FSEEKO
+AC_CHECK_FUNC([fseeko])
 if test ! $ac_cv_func_fseeko; then
-   AC_ERROR([Libburn requires largefile support.])
+   AC_ERROR([Libisofs requires largefile support.])
 fi
 
 AC_PROG_LIBTOOL