configure.ac | 1 +
 1 file changed, 1 insertion(+)

diff --git a/configure.ac b/configure.ac
index 0352b34..21e9aa3 100644
--- a/configure.ac
+++ b/configure.ac
@@ -10,6 +10,7 @@ AC_SUBST(VERSION)
 
 AC_PROG_CC
 AC_GNU_SOURCE
+AC_SYS_LARGEFILE
 AM_PROG_CC_C_O
 AC_PROG_CPP
 AC_ISC_POSIX