diff --git a/menu.c b/menu.c
index a567ca8..3943993 100644
--- a/menu.c
+++ b/menu.c
@@ -1,3 +1,5 @@
+/* copyright 2013 Sascha Kruse and contributors (see LICENSE for licensing information) */
+
 #define _GNU_SOURCE
 #include <stdbool.h>
 #include <regex.h>
@@ -212,3 +214,4 @@ void context_menu(void)
 
         dispatch_menu_result(buf);
 }
+/* vim: set ts=8 sw=8 tw=0: */
diff --git a/menu.h b/menu.h
index dbcf19c..805b6a1 100644
--- a/menu.h
+++ b/menu.h
@@ -1,3 +1,4 @@
+/* copyright 2013 Sascha Kruse and contributors (see LICENSE for licensing information) */
 #include "dunst.h"
 #include <regex.h>
 
diff --git a/notification.c b/notification.c
index ddce3b5..6274369 100644
--- a/notification.c
+++ b/notification.c
@@ -1,3 +1,4 @@
+/* copyright 2013 Sascha Kruse and contributors (see LICENSE for licensing information) */
 
 #define _GNU_SOURCE
 
@@ -410,3 +411,4 @@ int notification_close(notification * n, int reason)
                 return -1;
         return notification_close_by_id(n->id, reason);
 }
+/* vim: set ts=8 sw=8 tw=0: */
diff --git a/notification.h b/notification.h
index 30b5246..7fd7062 100644
--- a/notification.h
+++ b/notification.h
@@ -1,3 +1,4 @@
+/* copyright 2013 Sascha Kruse and contributors (see LICENSE for licensing information) */
 #pragma once
 
 #include "x.h"
diff --git a/option_parser.c b/option_parser.c
index 326c142..4f6e5ae 100644
--- a/option_parser.c
+++ b/option_parser.c
@@ -1,4 +1,5 @@
 /* copyright 2013 Sascha Kruse and contributors (see LICENSE for licensing information) */
+
 #define _GNU_SOURCE
 
 #include <string.h>
diff --git a/rules.c b/rules.c
index 3502db7..2b2478e 100644
--- a/rules.c
+++ b/rules.c
@@ -1,3 +1,5 @@
+/* copyright 2013 Sascha Kruse and contributors (see LICENSE for licensing information) */
+
 #include <glib.h>
 #include <fnmatch.h>
 
@@ -64,3 +66,4 @@ bool rule_matches_notification(rule_t * r, notification * n)
                 && (!r->body || !fnmatch(r->body, n->body, 0))
                 && (!r->icon || !fnmatch(r->icon, n->icon, 0)));
 }
+/* vim: set ts=8 sw=8 tw=0: */
diff --git a/rules.h b/rules.h
index 9fb2bbd..92a46de 100644
--- a/rules.h
+++ b/rules.h
@@ -1,3 +1,4 @@
+/* copyright 2013 Sascha Kruse and contributors (see LICENSE for licensing information) */
 #pragma once
 
 #include <glib.h>
diff --git a/settings.c b/settings.c
index cef3e85..b2f2b88 100644
--- a/settings.c
+++ b/settings.c
@@ -1,3 +1,4 @@
+/* copyright 2013 Sascha Kruse and contributors (see LICENSE for licensing information) */
 
 #include <glib.h>
 #include <basedir.h>
@@ -301,3 +302,4 @@ void load_settings(char *cmdline_config_path)
         xdgWipeHandle(&xdg);
 #endif
 }
+/* vim: set ts=8 sw=8 tw=0: */
diff --git a/settings.h b/settings.h
index 134088a..72678b0 100644
--- a/settings.h
+++ b/settings.h
@@ -1,3 +1,4 @@
+/* copyright 2013 Sascha Kruse and contributors (see LICENSE for licensing information) */
 #pragma once
 
 typedef struct _settings {
diff --git a/utils.c b/utils.c
index 3e9b013..1923a62 100644
--- a/utils.c
+++ b/utils.c
@@ -1,3 +1,4 @@
+/* copyright 2013 Sascha Kruse and contributors (see LICENSE for licensing information) */
 #define _GNU_SOURCE
 
 #include <string.h>
diff --git a/utils.h b/utils.h
index ed63679..47bf82a 100644
--- a/utils.h
+++ b/utils.h
@@ -1,3 +1,4 @@
+/* copyright 2013 Sascha Kruse and contributors (see LICENSE for licensing information) */
 #ifndef UTIL_H
 #define UTIL_H
 /* replace all occurrences of needle with replacement in haystack */