diff --git a/MobArena.jar b/MobArena.jar
index 831ba6f..fd2ae3e 100644
Binary files a/MobArena.jar and b/MobArena.jar differ
diff --git a/src/com/garbagemule/MobArena/util/ItemParser.java b/src/com/garbagemule/MobArena/util/ItemParser.java
index 0dff503..12d45c4 100644
--- a/src/com/garbagemule/MobArena/util/ItemParser.java
+++ b/src/com/garbagemule/MobArena/util/ItemParser.java
@@ -173,7 +173,7 @@ public class ItemParser
     }
     
     private static int getAmount(String amount) {
-        if (amount.matches("[1-9][0-9]*")) {
+        if (amount.matches("(-)?[1-9][0-9]*")) {
             return Integer.parseInt(amount);
         }