diff --git a/SpigotCore_Main/src/de/steamwar/inventory/SWAnvilInv.java b/SpigotCore_Main/src/de/steamwar/inventory/SWAnvilInv.java
index e522e97..3ff1aa1 100644
--- a/SpigotCore_Main/src/de/steamwar/inventory/SWAnvilInv.java
+++ b/SpigotCore_Main/src/de/steamwar/inventory/SWAnvilInv.java
@@ -35,6 +35,7 @@ public class SWAnvilInv {
     private final Player player;
     private final String defaultText;
 
+    private Runnable leftCallback;
     private Consumer<String> callback;
 
     public SWAnvilInv(Player p, String t) {
@@ -42,7 +43,7 @@ public class SWAnvilInv {
     }
 
     public SWAnvilInv(Player p, String t, String defaultText) {
-        builder = new AnvilGUI.Builder().plugin(Core.getInstance()).title(t).text("»" + defaultText).onComplete(this::onResult);
+        builder = new AnvilGUI.Builder().plugin(Core.getInstance()).title(t).text("»" + defaultText).onClick(this::onResult);
         this.defaultText = defaultText;
         player = p;
     }
@@ -68,7 +69,7 @@ public class SWAnvilInv {
     }
 
     public void addLeftCallback(Runnable callback) {
-        builder.onLeftInputClick(p -> callback.run());
+        leftCallback = callback;
     }
 
     public void addCloseCallback(Runnable callback) {
@@ -80,7 +81,15 @@ public class SWAnvilInv {
         builder.open(player);
     }
 
-    private List<AnvilGUI.ResponseAction> onResult(Player player, String s) {
+    private List<AnvilGUI.ResponseAction> onResult(Integer slot, AnvilGUI.StateSnapshot state) {
+        if(slot != AnvilGUI.Slot.OUTPUT) {
+            if(slot == AnvilGUI.Slot.INPUT_LEFT && leftCallback != null)
+                leftCallback.run();
+
+            return Collections.emptyList();
+        }
+
+        String s = state.getText();
         if(s.startsWith("»"))
             s = s.substring(1);
         callback.accept(s);