diff --git a/src/server/game/mod/kv/kv.go b/src/server/game/mod/kv/kv.go
index b98e87bd..346884f3 100644
--- a/src/server/game/mod/kv/kv.go
+++ b/src/server/game/mod/kv/kv.go
@@ -13,6 +13,12 @@ func (f *KvMod) InitData() {
 }
 
 func (f *KvMod) SetVar(key int, value string) {
+	if len(value) > 500 {
+		return
+	}
+	if len(f.Data) > 50 {
+		return
+	}
 	f.Data[key] = value
 }