diff --git a/README.md b/README.md
index 1786597..ef0a53d 100644
--- a/README.md
+++ b/README.md
@@ -23,4 +23,28 @@ You can kill players with many different method, for example with an explosion o
 ## Installation
 1. Download **AdvancedKill_Paper_x.xx.jar** and copy it into the *plugins* directory from your server.
 
-2. Restart the server
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+2. Restart the server
+
+## Filter
+The AdvancedKill Plugin has a filter for players. If a player is add to the filter, nobody can kill him with akill.
+
+### Add a player
+To add a player, run
+```
+/afilter <player>
+```
+### Remove a player
+To remoce a player, run
+```
+/afilter <player>
+```
+
+### List players
+To list all players in the filter, run
+```
+/afiler
+```
+
+### Turn filter on and off
+To turn the filter on and off, open `config.yml`. You can find the config.yml in `plugins/AdvancedKill`
+Open it and set `filter-player` to `true`or `false`
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