diff --git a/contrib/mod_defender/defender.h b/contrib/mod_defender/defender.h
new file mode 100644
index 0000000..088416e
--- /dev/null
+++ b/contrib/mod_defender/defender.h
@@ -0,0 +1,42 @@
+/*
+ * Mod Defender for HAProxy
+ *
+ * Copyright 2017 HAProxy Technologies, Dragan Dosen <ddosen@haproxy.com>
+ *
+ * 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
+ * 3 of the License, or (at your option) any later version.
+ *
+ */
+#ifndef __DEFENDER_H__
+#define __DEFENDER_H__
+
+#include <types/sample.h>
+
+struct defender_request {
+	struct sample clientip;
+	struct sample id;
+	struct sample method;
+	struct sample path;
+	struct sample query;
+	struct sample version;
+	struct sample headers;
+	struct sample body;
+};
+
+struct defender_header {
+	struct {
+		char     *str;
+		uint64_t  len;
+	} name;
+	struct {
+		char     *str;
+		uint64_t  len;
+	} value;
+};
+
+int defender_init(const char *config_file, const char *log_file);
+int defender_process_request(struct worker *worker, struct defender_request *request);
+
+#endif /* __DEFENDER_H__ */