diff --git a/LeStorage/Codables/Settings.swift b/LeStorage/Codables/Settings.swift
index c6808bd..6cb75e8 100644
--- a/LeStorage/Codables/Settings.swift
+++ b/LeStorage/Codables/Settings.swift
@@ -18,6 +18,9 @@ class Settings: MicroStorable {
     var deviceId: String? = nil
     var lastSynchronization: String = "2000-01-01T00:00:00.000000Z"
     
+    // WARNING: adding mandatory variable is not without consequences !!!
+    // Please add to the decoder below
+    
     required init(from decoder: Decoder) throws {
         let container = try decoder.container(keyedBy: CodingKeys.self)