diff --git a/Mage.Server/src/main/java/mage/server/Session.java b/Mage.Server/src/main/java/mage/server/Session.java
index 99ffb9050fc..23423bb81ed 100644
--- a/Mage.Server/src/main/java/mage/server/Session.java
+++ b/Mage.Server/src/main/java/mage/server/Session.java
@@ -167,8 +167,8 @@ public class Session {
         if (userName.length() <= 1) {
             return "User name is too short (1 characters or fewer)";
         }
-        if (userName.length() >= 500) {
-            return "User name is too long (500 characters or more)";
+        if (userName.length() >= 250) {
+            return "User name is too long (250 characters or more)";
         }
         return null;
     }