diff --git a/Makefile.in b/Makefile.in
index 100e390..ddcdab8 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -67,7 +67,7 @@ HFILES = sycls.h sslcls.h error.h dalan.h procan.h filan.h hostan.h sysincludes.
 	xio-ascii.h xiolockfile.h xio-tcpwrap.h xio-ext2.h xio-tun.h
 
 
-DOCFILES = README README.FIPS CHANGES FILES EXAMPLES PORTING SECURITY DEVELOPMENT doc/socat.1 doc/socat.html doc/xio.help FAQ BUGREPORTS COPYING COPYING.OpenSSL doc/dest-unreach.css doc/socat-openssltunnel.html doc/socat-multicast.html doc/socat-tun.html
+DOCFILES = README README.FIPS CHANGES FILES EXAMPLES PORTING SECURITY DEVELOPMENT doc/socat.yo doc/socat.1 doc/socat.html doc/xio.help FAQ BUGREPORTS COPYING COPYING.OpenSSL doc/dest-unreach.css doc/socat-openssltunnel.html doc/socat-multicast.html doc/socat-tun.html
 SHFILES = daemon.sh mail.sh ftp.sh readline.sh
 TESTFILES = test.sh socks4echo.sh proxyecho.sh gatherinfo.sh readline-test.sh \
 	proxy.sh socks4a-echo.sh testcert.conf