diff --git a/configure.ac b/configure.ac
index e8e4f808..5e883435 100644
--- a/configure.ac
+++ b/configure.ac
@@ -65,6 +65,7 @@ AC_PROG_CC
 AM_PROG_CC_C_O
 AC_PROG_CXX
 AC_USE_SYSTEM_EXTENSIONS
+AC_SYS_LARGEFILE
 AC_ISC_POSIX
 AC_HEADER_STDC
 AC_C_INLINE