diff --git a/src/main/java/org/gestern/gringotts/event/AccountListener.java b/src/main/java/org/gestern/gringotts/event/AccountListener.java
index 3bfbe30..de4ce35 100755
--- a/src/main/java/org/gestern/gringotts/event/AccountListener.java
+++ b/src/main/java/org/gestern/gringotts/event/AccountListener.java
@@ -22,6 +22,8 @@
 
 import com.destroystokyo.paper.event.block.BlockDestroyEvent;
 
+import io.papermc.paper.event.player.PlayerOpenSignEvent;
+
 import java.util.Optional;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
@@ -149,6 +151,21 @@ public void run() {
         }
     }
 
+    @EventHandler
+    public void onSignEdit(PlayerOpenSignEvent event) {
+        event.getPlayer().sendMessage("non");
+        for (AccountChest chest : Gringotts.instance.getDao().retrieveChests()) {
+            if (!chest.isChestLoaded()) continue; // For a sign to be changed, it needs to be loaded
+            
+            event.getPlayer().sendMessage("non1");
+            if (event.getSign().equals(chest.sign)) {
+                event.getPlayer().sendMessage("non final");
+                event.setCancelled(true);
+                return;
+            }
+        }
+    }
+
     /**
      * Get the AccountChest associated with this {@link InventoryHolder}
      * @param holder