diff --git a/dos2unix.spec b/dos2unix.spec
index 5e0a4b1..cd25ae5 100644
--- a/dos2unix.spec
+++ b/dos2unix.spec
@@ -1,7 +1,7 @@
 Summary: Text file format converter
 Name: dos2unix
 Version: 3.1
-Release: 24.2.1
+Release: 25
 Group: Applications/Text
 License: Freely distributable
 Source: %{name}-%{version}.tar.bz2
@@ -33,7 +33,7 @@ done
 
 %build
 make clean
-make CFLAGS="$RPM_OPT_FLAGS"
+make CFLAGS="$RPM_OPT_FLAGS -D_LARGEFILE_SOURCE $(getconf LFS_CFLAGS)"
 make link
 
 %install
@@ -56,6 +56,9 @@ install -m444 mac2unix.1 $RPM_BUILD_ROOT%{_mandir}/man1
 rm -rf $RPM_BUILD_ROOT
 
 %changelog
+* Thu Jun  1 2006 Tim Waugh <twaugh@redhat.com> 3.1-25
+- Build with large file support.
+
 * Fri Feb 10 2006 Jesse Keating <jkeating@redhat.com> - 3.1-24.2.1
 - bump again for double-long bug on ppc(64)