diff --git a/src/cw/dtls_openssl.h b/src/cw/dtls_openssl.h
index 1fb5cfec..b038f337 100644
--- a/src/cw/dtls_openssl.h
+++ b/src/cw/dtls_openssl.h
@@ -1,3 +1,24 @@
+/*
+    This file is part of actube.
+
+    actube 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.
+
+    libcapwap 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 General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with Foobar.  If not, see <http://www.gnu.org/licenses/>.
+
+*/
+/**
+ * @file 
+ */
+
 #ifndef __DTLS_OPENSSL_H
 #define __DTLS_OPENSSL_H
 
@@ -7,11 +28,16 @@
 
 #include "conn.h"
 
+/**
+ * @defgroup DTLSOPENSSL DTLS OpenSSL
+ * @{
+ */
+
+
 struct dtls_openssl_data{
 	SSL_CTX * ctx;
 	SSL * ssl;
 	BIO * bio;
-
 	uint8_t buffer[2048];
 	int len;
 	int pos;
@@ -50,4 +76,8 @@ extern BIO_METHOD * dtls_openssl_bio_method();
 
 extern int dtls_openssl_shutdown(struct conn *conn);
 
+/**
+ * @}
+ */
+
 #endif