diff --git a/configure.ac b/configure.ac
index 730861f78a..841557f8f7 100644
--- a/configure.ac
+++ b/configure.ac
@@ -21,6 +21,7 @@ AC_INIT([systemd],[25],[systemd-devel@lists.freedesktop.org])
 AC_CONFIG_SRCDIR([src/main.c])
 AC_CONFIG_MACRO_DIR([m4])
 AC_CONFIG_HEADERS([config.h])
+AC_SYS_LARGEFILE
 
 AM_INIT_AUTOMAKE([foreign 1.11 -Wall -Wno-portability silent-rules tar-pax subdir-objects dist-bzip2])