diff --git a/lib/in46_addr.c b/lib/in46_addr.c
index f78a40b..068499c 100644
--- a/lib/in46_addr.c
+++ b/lib/in46_addr.c
@@ -6,7 +6,7 @@
  * General Public License Version 2, provided that the above copyright
  * notice and this permission notice is included in all copies or
  * substantial portions of the software.
- * 
+ *
  */
 
 #include "../lib/in46_addr.h"
diff --git a/lib/ippool.c b/lib/ippool.c
index a236fe7..d9164a3 100644
--- a/lib/ippool.c
+++ b/lib/ippool.c
@@ -7,7 +7,7 @@
  * General Public License Version 2, provided that the above copyright
  * notice and this permission notice is included in all copies or
  * substantial portions of the software.
- * 
+ *
  */
 
 #include <sys/types.h>
@@ -374,7 +374,7 @@
 	uint32_t hash;
 
 	/* If static:
-	 *   Look in dynaddr. 
+	 *   Look in dynaddr.
 	 *     If found remove from firstdyn/lastdyn linked list.
 	 *   Else allocate from stataddr.
 	 *    Remove from firststat/laststat linked list.
diff --git a/lib/ippool.h b/lib/ippool.h
index fbac66d..56beb4e 100644
--- a/lib/ippool.h
+++ b/lib/ippool.h
@@ -1,12 +1,12 @@
-/* 
+/*
  * IP address pool functions.
  * Copyright (C) 2003, 2004 Mondru AB.
- * 
+ *
  * The contents of this file may be used under the terms of the GNU
  * General Public License Version 2, provided that the above copyright
  * notice and this permission notice is included in all copies or
  * substantial portions of the software.
- * 
+ *
  */
 
 #ifndef _IPPOOL_H
@@ -23,7 +23,7 @@
    When initialising a new address pool it should be possible to pass
    a string of CIDR format networks: "10.0.0.0/24 10.15.0.0/20" would
    translate to 256 addresses starting at 10.0.0.0 and 1024 addresses
-   starting at 10.15.0.0. 
+   starting at 10.15.0.0.
 
    The above also applies to IPv6 which can be specified as described
    in RFC2373.
diff --git a/lib/tun.c b/lib/tun.c
index 35d371e..7662146 100644
--- a/lib/tun.c
+++ b/lib/tun.c
@@ -1,13 +1,13 @@
-/* 
+/*
  * TUN interface functions.
  * Copyright (C) 2002, 2003, 2004 Mondru AB.
  * Copyright (C) 2017 by Harald Welte <laforge@gnumonks.org>
- * 
+ *
  * The contents of this file may be used under the terms of the GNU
  * General Public License Version 2, provided that the above copyright
  * notice and this permission notice is included in all copies or
  * substantial portions of the software.
- * 
+ *
  */
 
 /*
diff --git a/lib/tun.h b/lib/tun.h
index 95fff26..f63be50 100644
--- a/lib/tun.h
+++ b/lib/tun.h
@@ -1,13 +1,13 @@
-/* 
+/*
  * TUN interface functions.
  * Copyright (C) 2002, 2003 Mondru AB.
  * Copyright (C) 2017 by Harald Welte <laforge@gnumonks.org>
- * 
+ *
  * The contents of this file may be used under the terms of the GNU
  * General Public License Version 2, provided that the above copyright
  * notice and this permission notice is included in all copies or
  * substantial portions of the software.
- * 
+ *
  */
 
 #ifndef _TUN_H