diff --git a/BauSystem_12/src/de/steamwar/bausystem/world/ScriptListener_12.java b/BauSystem_12/src/de/steamwar/bausystem/world/ScriptListener_12.java
new file mode 100644
index 0000000..061befa
--- /dev/null
+++ b/BauSystem_12/src/de/steamwar/bausystem/world/ScriptListener_12.java
@@ -0,0 +1,31 @@
+/*
+    This file is a part of the SteamWar software.
+
+    Copyright (C) 2020  SteamWar.de-Serverteam
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+package de.steamwar.bausystem.world;
+
+import org.bukkit.Material;
+import org.bukkit.inventory.ItemStack;
+
+class ScriptListener_12 {
+    private ScriptListener_12(){}
+
+    static boolean isNoBook(ItemStack item){
+        return item.getType() != Material.BOOK_AND_QUILL && item.getType() != Material.WRITTEN_BOOK;
+    }
+}
diff --git a/BauSystem_15/src/de/steamwar/bausystem/world/ScriptListener_15.java b/BauSystem_15/src/de/steamwar/bausystem/world/ScriptListener_15.java
new file mode 100644
index 0000000..3964be0
--- /dev/null
+++ b/BauSystem_15/src/de/steamwar/bausystem/world/ScriptListener_15.java
@@ -0,0 +1,31 @@
+/*
+    This file is a part of the SteamWar software.
+
+    Copyright (C) 2020  SteamWar.de-Serverteam
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+package de.steamwar.bausystem.world;
+
+import org.bukkit.Material;
+import org.bukkit.inventory.ItemStack;
+
+class ScriptListener_15 {
+    private ScriptListener_15(){}
+
+    static boolean isNoBook(ItemStack item){
+        return item.getType() != Material.WRITABLE_BOOK && item.getType() != Material.WRITTEN_BOOK;
+    }
+}
diff --git a/BauSystem_Main/src/de/steamwar/bausystem/world/ScriptListener.java b/BauSystem_Main/src/de/steamwar/bausystem/world/ScriptListener.java
index ff3986f..2be2361 100644
--- a/BauSystem_Main/src/de/steamwar/bausystem/world/ScriptListener.java
+++ b/BauSystem_Main/src/de/steamwar/bausystem/world/ScriptListener.java
@@ -19,12 +19,13 @@
 
 package de.steamwar.bausystem.world;
 
+import de.steamwar.core.Core;
 import org.bukkit.Bukkit;
-import org.bukkit.Material;
 import org.bukkit.entity.Player;
 import org.bukkit.event.EventHandler;
 import org.bukkit.event.Listener;
 import org.bukkit.event.block.Action;
+import org.bukkit.event.player.PlayerCommandPreprocessEvent;
 import org.bukkit.event.player.PlayerInteractEvent;
 import org.bukkit.inventory.ItemStack;
 import org.bukkit.inventory.meta.BookMeta;
@@ -39,7 +40,7 @@ public class ScriptListener implements Listener {
             return;
 
         ItemStack item = event.getItem();
-        if(item == null || (item.getType() != Material.WRITABLE_BOOK && item.getType() != Material.WRITTEN_BOOK) || item.getItemMeta() == null)
+        if(item == null || isNoBook(item) || item.getItemMeta() == null)
             return;
 
         event.setCancelled(true);
@@ -48,10 +49,26 @@ public class ScriptListener implements Listener {
         for(String page : meta.getPages()){
             for(String command : page.split("\n")){
                 if (command.startsWith("#")) continue;
+
+                PlayerCommandPreprocessEvent preprocessEvent = new PlayerCommandPreprocessEvent(player, "/" + command);
+                Bukkit.getServer().getPluginManager().callEvent(preprocessEvent);
+                if(preprocessEvent.isCancelled())
+                    continue;
+
                 Bukkit.getLogger().log(Level.INFO, player.getName() + " dispatched command: " + command);
                 Bukkit.getServer().dispatchCommand(player, command);
             }
         }
     }
 
+    private boolean isNoBook(ItemStack item){
+        switch(Core.getVersion()){
+            case 12:
+                return ScriptListener_12.isNoBook(item);
+            case 15:
+            default:
+                return ScriptListener_15.isNoBook(item);
+        }
+    }
+
 }