diff --git a/src/main/java/com/Acrobot/ChestShop/Signs/ChestShopSign.java b/src/main/java/com/Acrobot/ChestShop/Signs/ChestShopSign.java
index 662df0a10..638fc2e1c 100644
--- a/src/main/java/com/Acrobot/ChestShop/Signs/ChestShopSign.java
+++ b/src/main/java/com/Acrobot/ChestShop/Signs/ChestShopSign.java
@@ -19,7 +19,7 @@ public class ChestShopSign {
     public static final byte PRICE_LINE = 2;
     public static final byte ITEM_LINE = 3;
 
-    public static final Pattern[] SHOP_SIGN_PATTERN = { Pattern.compile("^?[\\w -.]*$"), Pattern.compile("^[1-9][0-9]*$"), Pattern.compile("(?i)^[\\d.bs(free) :]+$"), Pattern.compile("^[\\w? #:-]+$") };
+    public static final Pattern[] SHOP_SIGN_PATTERN = { Pattern.compile("^?[\\w -.]*$"), Pattern.compile("^[1-9][0-9]{0,4}$"), Pattern.compile("(?i)^[\\d.bs(free) :]+$"), Pattern.compile("^[\\w? #:-]+$") };
 
     public static boolean isAdminShop(Inventory ownerInventory) {
         return ownerInventory instanceof AdminInventory;