diff --git a/doxygen/input/doc_tcpip.h b/doxygen/input/doc_tcpip.h
index 53076bc..c9309a7 100644
--- a/doxygen/input/doc_tcpip.h
+++ b/doxygen/input/doc_tcpip.h
@@ -5,12 +5,12 @@
 
 /**
  * @addtogroup tcpip_communication_module TCP/IP communication module
- * 
+ *
  * The TCP/IP communication module provides for a channel of
- * communication for the \link ssltls_communication_module SSL/TLS communication 
- * module\endlink to use. 
- * In the TCP/IP-model it provides for communication up to the Transport 
- * (or Host-to-host) layer. 
+ * communication for the \link ssltls_communication_module SSL/TLS communication
+ * module\endlink to use.
+ * In the TCP/IP-model it provides for communication up to the Transport
+ * (or Host-to-host) layer.
  * SSL/TLS resides on top of that, in the Application layer, and makes use of
  * its basic provisions:
  * - listening on a port (see \c net_bind()).
@@ -18,9 +18,9 @@
  * - read/write (through \c net_recv()/\c net_send()).
  * - close a connection (through \c net_close()).
  *
- * This way you have the means to, for example, implement and use an UDP or 
+ * This way you have the means to, for example, implement and use an UDP or
  * IPSec communication solution as a basis.
- * 
+ *
  * This module can be used at server- and clientside to provide a basic
  * means of communication over the internet.
  */