diff --git a/contrib/modsecurity/modsec_wrapper.h b/contrib/modsecurity/modsec_wrapper.h
new file mode 100644
index 0000000..e4b0484
--- /dev/null
+++ b/contrib/modsecurity/modsec_wrapper.h
@@ -0,0 +1,34 @@
+/*
+ * Modsecurity wrapper for haproxy
+ *
+ * This file contains the headers of the wrapper which sends data
+ * in ModSecurity and returns the verdict.
+ *
+ * Copyright 2016 OZON, Thierry Fournier <thierry.fournier@ozon.io>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ *
+ */
+#ifndef __MODSEC_WRAPPER_H__
+#define __MODSEC_WRAPPER_H__
+
+#include "spoa.h"
+
+struct modsecurity_parameters {
+	struct sample uniqueid;
+	struct sample method;
+	struct sample path;
+	struct sample query;
+	struct sample vers;
+	struct sample hdrs_bin;
+	struct sample body_length;
+	struct sample body;
+};
+
+int modsecurity_load(const char *file);
+int modsecurity_process(struct worker *worker, struct modsecurity_parameters *params);
+
+#endif /* __MODSEC_WRAPPER_H__ */