diff --git a/Content.Client/UserInterface/Systems/Chat/ChatUIController.cs b/Content.Client/UserInterface/Systems/Chat/ChatUIController.cs
index 86730dea36..409b7b886a 100644
--- a/Content.Client/UserInterface/Systems/Chat/ChatUIController.cs
+++ b/Content.Client/UserInterface/Systems/Chat/ChatUIController.cs
@@ -247,7 +247,16 @@ public sealed class ChatUIController : UIController
                 chatBox = defaultScreen.ChatBox;
                 //White modification start
                 chatSizeRaw = _config.GetCVar(WhiteCVars.DefaultChatSize);
+
                 chatSize = Vector2Utils.ParseVector2FromString(chatSizeRaw, ';');
+
+                //БЛЯЯЯЯЯЯЯЯЯЯЯЯЯЯЯЯЯЯЯЯЯЯЯЯЯЯЯЯЯЯЯЯЯЯЯЯЯЯЯЯЯЯЯЯЯЯЯЯЯЯЯЯЯЯЯЯЯЯЯЯЯЯЯЯЯЯЯЯЯЯЯЯЯЯТЬ
+                if (chatSize.X <= 0 || chatSize.Y <= 0 || chatSize.X > 1000 || chatSize.Y > 1000)
+                {
+                    chatSize = Vector2Utils.ParseVector2FromString(WhiteCVars.DefaultChatSize.DefaultValue, ';');
+                    _config.SetCVar(WhiteCVars.DefaultChatSize, WhiteCVars.DefaultChatSize.DefaultValue);
+                }
+
                 //End
                 SetChatSizing(chatSize, defaultScreen, setting);
                 break;