diff --git a/Dorkbox-Network/src/dorkbox/network/connection/EndPoint.java b/Dorkbox-Network/src/dorkbox/network/connection/EndPoint.java
index 2fa0b823..f4520a5e 100644
--- a/Dorkbox-Network/src/dorkbox/network/connection/EndPoint.java
+++ b/Dorkbox-Network/src/dorkbox/network/connection/EndPoint.java
@@ -517,7 +517,7 @@ class EndPoint<C extends Connection> {
 
         EndPointTool put = this.toolMap.put(toolClass.getClass(), toolClass);
         if (put != null) {
-            throw new IllegalArgumentException("Tool must be unique! Unable to add tool");
+            throw new IllegalArgumentException("Tool must be unique! Unable to add tool '" + toolClass + "'");
         }
     }