diff --git a/configure.in b/configure.in
index 8c989ec90..14d95ac91 100644
--- a/configure.in
+++ b/configure.in
@@ -140,7 +140,7 @@ AC_HEADER_STDC
 
 AC_CHECK_HEADERS(arpa/inet.h arpa/telnet.h bsdsetjmp.h crypt.h)
 AC_CHECK_HEADERS(curses.h db.h dbm.h dirent.h err.h errno.h)
-AC_CHECK_HEADERS(fcntl.h grp.h limits.h ndbm.h net/if.h netdb.h)
+AC_CHECK_HEADERS(fcntl.h grp.h inttypes.h limits.h ndbm.h net/if.h netdb.h)
 AC_CHECK_HEADERS(netinet/in.h netinet/in6.h)
 AC_CHECK_HEADERS(netinet/in6_machtypes.h netinet/in_systm.h)
 AC_CHECK_HEADERS(netinet/ip.h netinet/tcp.h netinfo/ni.h paths.h pty.h pwd.h)