diff --git a/src/main/java/com/Acrobot/ChestShop/Listeners/Block/SignCreate.java b/src/main/java/com/Acrobot/ChestShop/Listeners/Block/SignCreate.java
index ee07a53..b3ce320 100644
--- a/src/main/java/com/Acrobot/ChestShop/Listeners/Block/SignCreate.java
+++ b/src/main/java/com/Acrobot/ChestShop/Listeners/Block/SignCreate.java
@@ -6,6 +6,7 @@ import com.Acrobot.ChestShop.ChestShop;
 import com.Acrobot.ChestShop.Events.PreShopCreationEvent;
 import com.Acrobot.ChestShop.Events.ShopCreatedEvent;
 import com.Acrobot.ChestShop.Signs.ChestShopSign;
+import com.Acrobot.ChestShop.UUIDs.NameManager;
 import com.Acrobot.ChestShop.Utils.uBlock;
 import org.bukkit.block.Block;
 import org.bukkit.block.Sign;
@@ -13,6 +14,9 @@ import org.bukkit.event.EventHandler;
 import org.bukkit.event.Listener;
 import org.bukkit.event.block.SignChangeEvent;
 
+import static com.Acrobot.ChestShop.Permission.OTHER_NAME_DESTROY;
+import static com.Acrobot.ChestShop.Signs.ChestShopSign.NAME_LINE;
+
 /**
  * @author Acrobot
  */
@@ -21,17 +25,26 @@ public class SignCreate implements Listener {
     @EventHandler(ignoreCancelled = true)
     public static void onSignChange(SignChangeEvent event) {
         Block signBlock = event.getBlock();
-        String[] line = StringUtil.stripColourCodes(event.getLines());
 
         if (!BlockUtil.isSign(signBlock)) {
             return;
         }
 
-        if (!ChestShopSign.isValidPreparedSign(line)) {
+        Sign sign = (Sign) signBlock.getState();
+
+        if (ChestShopSign.isValid(sign) && !NameManager.canUseName(event.getPlayer(), OTHER_NAME_DESTROY, StringUtil.stripColourCodes(sign.getLine(NAME_LINE)))) {
+            event.setCancelled(true);
+            sign.update();
             return;
         }
 
-        PreShopCreationEvent preEvent = new PreShopCreationEvent(event.getPlayer(), (Sign) signBlock.getState(), line);
+        String[] lines = StringUtil.stripColourCodes(event.getLines());
+
+        if (!ChestShopSign.isValidPreparedSign(lines)) {
+            return;
+        }
+
+        PreShopCreationEvent preEvent = new PreShopCreationEvent(event.getPlayer(), sign, lines);
         ChestShop.callEvent(preEvent);
 
         for (byte i = 0; i < event.getLines().length; ++i) {