diff --git a/Makefile b/Makefile
index b34c638..4f7bdd3 100644
--- a/Makefile
+++ b/Makefile
@@ -3,7 +3,7 @@
 
 include config.mk
 
-SRC = draw.c dunst.c dbus.c utils.c option_parser.c settings.c
+SRC = draw.c dunst.c dbus.c utils.c option_parser.c settings.c rules.c
 OBJ = ${SRC:.c=.o}
 
 all: doc options dunst service
diff --git a/dunst.c b/dunst.c
index b92d009..fd6fa69 100644
--- a/dunst.c
+++ b/dunst.c
@@ -33,6 +33,7 @@
 #include "draw.h"
 #include "dbus.h"
 #include "utils.h"
+#include "rules.h"
 
 #include "option_parser.h"
 #include "settings.h"
@@ -98,10 +99,6 @@ GSList *rules = NULL;
 // }}}
 
 // {{{ FUNCTION DEFINITIONS
-/* rules */
-void rule_apply(rule_t *r, notification *n);
-void rule_apply_all(notification *n);
-bool rule_matches_notification(rule_t *r, notification *n);
 
 /* notifications */
 int notification_cmp(const void *a, const void *b);
@@ -765,74 +762,6 @@ int notification_close(notification * n, int reason)
 // }}}
 
 
-// {{{ RULE
-
-        /*
-         * Apply rule to notification.
-         */
-void rule_apply(rule_t *r, notification *n)
-{ // {{{
-        if (r->timeout != -1)
-                n->timeout = r->timeout;
-        if (r->urgency != -1)
-                n->urgency = r->urgency;
-        if (r->fg)
-                n->color_strings[ColFG] = r->fg;
-        if (r->bg)
-                n->color_strings[ColBG] = r->bg;
-        if (r->format)
-                n->format = r->format;
-        if (r->script)
-                n->script = r->script;
-}
-// }}}
-
-        /*
-         * Check all rules if they match n and apply.
-         */
-void rule_apply_all(notification *n)
-{ // {{{
-        for (GSList *iter = rules; iter; iter = iter->next) {
-                rule_t *r = iter->data;
-                if (rule_matches_notification(r, n)) {
-                        rule_apply(r, n);
-                }
-        }
-}
-// }}}
-
-        /*
-         * Initialize rule with default values.
-         */
-void rule_init(rule_t *r)
-{ // {{{
-        r->name = NULL;
-        r->appname = NULL;
-        r->summary = NULL;
-        r->body = NULL;
-        r->icon = NULL;
-        r->timeout = -1;
-        r->urgency = -1;
-        r->fg = NULL;
-        r->bg = NULL;
-        r->format = NULL;
-}
-// }}}
-
-        /*
-         * Check whether rule should be applied to n.
-         */
-bool rule_matches_notification(rule_t *r, notification *n)
-{ // {{{
-
-                return ((!r->appname || !fnmatch(r->appname, n->appname, 0))
-                    && (!r->summary || !fnmatch(r->summary, n->summary, 0))
-                    && (!r->body || !fnmatch(r->body, n->body, 0))
-                    && (!r->icon || !fnmatch(r->icon, n->icon, 0)));
-}
-// }}}
-
-// }}}
 
 
 // {{{ X
diff --git a/dunst.h b/dunst.h
index e8dbd5a..1366f2c 100644
--- a/dunst.h
+++ b/dunst.h
@@ -68,22 +68,6 @@ typedef struct _notification {
         Actions *actions;
 } notification;
 
-typedef struct _rule_t {
-        char *name;
-        /* filters */
-        char *appname;
-        char *summary;
-        char *body;
-        char *icon;
-
-        /* actions */
-        int timeout;
-        int urgency;
-        char *fg;
-        char *bg;
-        const char *format;
-        const char *script;
-} rule_t;
 
 typedef struct _keyboard_shortcut {
         const char *str;
@@ -99,13 +83,11 @@ typedef struct _render_text {
 } render_text;
 
 extern int verbosity;
-extern GSList *rules;
 
 /* return id of notification */
 int notification_init(notification * n, int id);
 int notification_close_by_id(int id, int reason);
 gboolean run(void *data);
 void wake_up(void);
-void rule_init(rule_t *r);
 
 /* vim: set ts=8 sw=8 tw=0: */
diff --git a/rules.c b/rules.c
new file mode 100644
index 0000000..bcc03ab
--- /dev/null
+++ b/rules.c
@@ -0,0 +1,69 @@
+// {{{ INVLUDES
+#include <glib.h>
+#include <fnmatch.h>
+
+#include "dunst.h"
+#include "rules.h"
+// }}}
+
+/*
+ * Apply rule to notification.
+ */
+void rule_apply(rule_t *r, notification *n)
+{
+        if (r->timeout != -1)
+                n->timeout = r->timeout;
+        if (r->urgency != -1)
+                n->urgency = r->urgency;
+        if (r->fg)
+                n->color_strings[ColFG] = r->fg;
+        if (r->bg)
+                n->color_strings[ColBG] = r->bg;
+        if (r->format)
+                n->format = r->format;
+        if (r->script)
+                n->script = r->script;
+}
+
+/*
+ * Check all rules if they match n and apply.
+ */
+void rule_apply_all(notification *n)
+{
+        for (GSList *iter = rules; iter; iter = iter->next) {
+                rule_t *r = iter->data;
+                if (rule_matches_notification(r, n)) {
+                        rule_apply(r, n);
+                }
+        }
+}
+
+/*
+ * Initialize rule with default values.
+ */
+void rule_init(rule_t *r)
+{
+        r->name = NULL;
+        r->appname = NULL;
+        r->summary = NULL;
+        r->body = NULL;
+        r->icon = NULL;
+        r->timeout = -1;
+        r->urgency = -1;
+        r->fg = NULL;
+        r->bg = NULL;
+        r->format = NULL;
+}
+
+
+/*
+ * Check whether rule should be applied to n.
+ */
+bool rule_matches_notification(rule_t *r, notification *n)
+{
+
+                return ((!r->appname || !fnmatch(r->appname, n->appname, 0))
+                    && (!r->summary || !fnmatch(r->summary, n->summary, 0))
+                    && (!r->body || !fnmatch(r->body, n->body, 0))
+                    && (!r->icon || !fnmatch(r->icon, n->icon, 0)));
+}
diff --git a/rules.h b/rules.h
new file mode 100644
index 0000000..56c8e4b
--- /dev/null
+++ b/rules.h
@@ -0,0 +1,37 @@
+#pragma once
+
+// {{{ INCLUDES
+#include <glib.h>
+
+#include "dunst.h"
+// }}}
+
+// {{{ STRUCTS
+typedef struct _rule_t {
+        char *name;
+        /* filters */
+        char *appname;
+        char *summary;
+        char *body;
+        char *icon;
+
+        /* actions */
+        int timeout;
+        int urgency;
+        char *fg;
+        char *bg;
+        const char *format;
+        const char *script;
+} rule_t;
+// }}}
+
+// {{{ GLOBALS
+extern GSList *rules;
+// }}}
+
+// {{{ FUNCTIONS
+void rule_init(rule_t *r);
+void rule_apply(rule_t *r, notification *n);
+void rule_apply_all(notification *n);
+bool rule_matches_notification(rule_t *r, notification *n);
+// }}}
diff --git a/settings.c b/settings.c
index e07ff6d..e565e1f 100644
--- a/settings.c
+++ b/settings.c
@@ -5,6 +5,7 @@
 #include <basedir_fs.h>
 
 #include "dunst.h"
+#include "rules.h"
 #include "option_parser.h"
 #include "settings.h"
 #include "config.h"