diff --git a/include/proto/cttproxy.h b/include/proto/cttproxy.h
new file mode 100644
index 0000000..f343037
--- /dev/null
+++ b/include/proto/cttproxy.h
@@ -0,0 +1,47 @@
+/*
+  include/proto/cttproxy.h
+  This file contains prototypes for Linux's cttproxy interface.
+  This file should be included only if CTTPROXY is enabled.
+
+  Copyright (C) 2000-2007 Willy Tarreau - w@1wt.eu
+  
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation, version 2.1
+  exclusively.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+#ifndef _PROTO_CTTPROXY_H
+#define _PROTO_CTTPROXY_H
+
+#include <stdlib.h>
+#include <sys/socket.h>
+#include <sys/types.h>
+
+#include <common/config.h>
+#include <import/ip_tproxy.h>
+
+/*
+ * Checks that CTTPROXY is available and in the right version.
+ * Returns 0 if OK, -1 if wrong version, -2 if not available or other error.
+ */
+int check_cttproxy_version();
+
+
+#endif /* _PROTO_CTTPROXY_H */
+
+/*
+ * Local variables:
+ *  c-indent-level: 8
+ *  c-basic-offset: 8
+ * End:
+ */