diff --git a/Tranga/LibraryManager.cs b/Tranga/LibraryManager.cs
index 2c917e4..f8eb76b 100644
--- a/Tranga/LibraryManager.cs
+++ b/Tranga/LibraryManager.cs
@@ -15,7 +15,7 @@ public abstract class LibraryManager
         Kavita = 1
     }
 
-    public LibraryType libraryType;
+    public LibraryType libraryType { get; }
     public string baseUrl { get; }
     protected string auth { get; } //Base64 encoded, if you use your password everywhere, you have problems
     protected Logger? logger;
@@ -23,11 +23,12 @@ public abstract class LibraryManager
     /// <param name="baseUrl">Base-URL of Komga instance, no trailing slashes(/)</param>
     /// <param name="auth">Base64 string of username and password (username):(password)</param>
     /// <param name="logger"></param>
-    protected LibraryManager(string baseUrl, string auth, Logger? logger)
+    protected LibraryManager(string baseUrl, string auth, Logger? logger, LibraryType libraryType)
     {
         this.baseUrl = baseUrl;
         this.auth = auth;
         this.logger = logger;
+        this.libraryType = libraryType;
     }
     public abstract void UpdateLibrary();
 
diff --git a/Tranga/LibraryManagers/Kavita.cs b/Tranga/LibraryManagers/Kavita.cs
index 647d20c..c266e9e 100644
--- a/Tranga/LibraryManagers/Kavita.cs
+++ b/Tranga/LibraryManagers/Kavita.cs
@@ -6,9 +6,8 @@ namespace Tranga.LibraryManagers;
 
 public class Kavita : LibraryManager
 {
-    public Kavita(string baseUrl, string apiKey, Logger? logger) : base(baseUrl, apiKey, logger)
+    public Kavita(string baseUrl, string apiKey, Logger? logger) : base(baseUrl, apiKey, logger, LibraryType.Kavita)
     {
-        this.libraryType = LibraryType.Kavita;
     }
 
     public override void UpdateLibrary()
diff --git a/Tranga/LibraryManagers/Komga.cs b/Tranga/LibraryManagers/Komga.cs
index 656d5b5..39586c1 100644
--- a/Tranga/LibraryManagers/Komga.cs
+++ b/Tranga/LibraryManagers/Komga.cs
@@ -12,15 +12,13 @@ namespace Tranga.LibraryManagers;
 public class Komga : LibraryManager
 {
     public Komga(string baseUrl, string username, string password, Logger? logger)
-        : base(baseUrl, Convert.ToBase64String(System.Text.Encoding.ASCII.GetBytes($"{username}:{password}")), logger)
+        : base(baseUrl, Convert.ToBase64String(System.Text.Encoding.ASCII.GetBytes($"{username}:{password}")), logger, LibraryType.Komga)
     {
-        this.libraryType = LibraryType.Komga;
     }
 
     [JsonConstructor]
-    public Komga(string baseUrl, string auth, Logger? logger) : base(baseUrl, auth, logger)
+    public Komga(string baseUrl, string auth, Logger? logger) : base(baseUrl, auth, logger, LibraryType.Komga)
     {
-        this.libraryType = LibraryType.Komga;
     }
 
     public override void UpdateLibrary()