diff --git a/BauSystem_Main/src/de/steamwar/bausystem/world/ScriptListener.java b/BauSystem_Main/src/de/steamwar/bausystem/world/ScriptListener.java
index f490d35..552e068 100644
--- a/BauSystem_Main/src/de/steamwar/bausystem/world/ScriptListener.java
+++ b/BauSystem_Main/src/de/steamwar/bausystem/world/ScriptListener.java
@@ -67,16 +67,20 @@ public class ScriptListener implements Listener {
             while (index < commands.size()) {
                 String command = commands.get(index++);
 
-                if (command.startsWith("sleep")) {
-                    String sleepTimeString = command.substring(5).trim();
-                    int sleepTime = 1;
-                    try {
-                        sleepTime = Integer.parseInt(sleepTimeString);
-                    } catch (NumberFormatException e) {
-                        // Ignored
+                String[] strings = command.split(" ");
+                if (strings.length > 0) {
+                    if (strings[0].equalsIgnoreCase("sleep")) {
+                        int sleepTime = 1;
+                        if (strings.length > 1) {
+                            try {
+                                sleepTime = Integer.parseInt(strings[1]);
+                            } catch (NumberFormatException e) {
+                                // Ignored
+                            }
+                        }
+                        Bukkit.getScheduler().runTaskLater(BauSystem.getPlugin(), this::resume, sleepTime);
+                        break;
                     }
-                    Bukkit.getScheduler().runTaskLater(BauSystem.getPlugin(), this::resume, sleepTime);
-                    break;
                 }
 
                 PlayerCommandPreprocessEvent preprocessEvent = new PlayerCommandPreprocessEvent(player, "/" + command);