diff --git a/Jellyfin.Plugin.JavTube/Extensions/ProviderIdModelExtensions.cs b/Jellyfin.Plugin.JavTube/Extensions/ProviderIdModelExtensions.cs
new file mode 100644
index 0000000..00c42fa
--- /dev/null
+++ b/Jellyfin.Plugin.JavTube/Extensions/ProviderIdModelExtensions.cs
@@ -0,0 +1,67 @@
+using Jellyfin.Plugin.JavTube.Models;
+
+namespace Jellyfin.Plugin.JavTube.Extensions;
+
+internal static class ProviderIdModelExtensions
+{
+    private const char Separator = ':';
+
+    private static double? ParseDouble(string s)
+    {
+        try
+        {
+            return double.Parse(s);
+        }
+        catch (Exception)
+        {
+            return null;
+        }
+    }
+
+    private static bool? ParseBool(string s)
+    {
+        switch (s)
+        {
+            case "1":
+            case "t":
+            case "T":
+            case "true":
+            case "True":
+            case "TRUE":
+                return true;
+            case "0":
+            case "f":
+            case "F":
+            case "false":
+            case "False":
+            case "FALSE":
+                return false;
+        }
+
+        return null;
+    }
+
+    public static ProviderIdModel Deserialize(string rawPid)
+    {
+        var providerIds = rawPid?.Split(Separator);
+        return new ProviderIdModel
+        {
+            Provider = providerIds?.Length > 0 ? providerIds[0] : string.Empty,
+            Id = providerIds?.Length > 1 ? providerIds[1] : string.Empty,
+            Position = providerIds?.Length > 2 ? ParseDouble(providerIds[2]) : null,
+            UpdateInfo = providerIds?.Length > 3 ? ParseBool(providerIds[3]) : null
+        };
+    }
+
+    public static string Serialize(this ProviderIdModel pid)
+    {
+        //var pid = this;
+        var values = new List<string>
+        {
+            pid.Provider, pid.Id
+        };
+        if (pid.Position.HasValue) values.Add(pid.Position.ToString());
+        if (pid.UpdateInfo.HasValue) values.Add(pid.UpdateInfo.ToString());
+        return string.Join(Separator, values);
+    }
+}
\ No newline at end of file
diff --git a/Jellyfin.Plugin.JavTube/Extensions/ProviderIdsExtensions.cs b/Jellyfin.Plugin.JavTube/Extensions/ProviderIdsExtensions.cs
index 032e960..5836a19 100644
--- a/Jellyfin.Plugin.JavTube/Extensions/ProviderIdsExtensions.cs
+++ b/Jellyfin.Plugin.JavTube/Extensions/ProviderIdsExtensions.cs
@@ -9,7 +9,7 @@ internal static class ProviderIdsExtensions
     {
         return !instance.ProviderIds.Any()
             ? new ProviderIdModel()
-            : ProviderIdModel.Deserialize(instance.GetProviderId(name));
+            : ProviderIdModelExtensions.Deserialize(instance.GetProviderId(name));
     }
 
     public static void SetProviderIdModel(this IHasProviderIds instance, string name, ProviderIdModel pid)
diff --git a/Jellyfin.Plugin.JavTube/Models/ProviderModel.cs b/Jellyfin.Plugin.JavTube/Models/ProviderModel.cs
index 3df1402..243d0b9 100644
--- a/Jellyfin.Plugin.JavTube/Models/ProviderModel.cs
+++ b/Jellyfin.Plugin.JavTube/Models/ProviderModel.cs
@@ -19,65 +19,4 @@ public class ProviderIdModel : ProviderModel
     [JsonIgnore] public double? Position { get; set; }
 
     [JsonIgnore] public bool? UpdateInfo { get; set; }
-
-    public string Serialize()
-    {
-        var pid = this;
-        var values = new List<string>
-        {
-            pid.Provider, pid.Id
-        };
-        if (pid.Position.HasValue) values.Add(pid.Position.ToString());
-        if (pid.UpdateInfo.HasValue) values.Add(pid.UpdateInfo.ToString());
-        return string.Join(Separator, values);
-    }
-
-    public static ProviderIdModel Deserialize(string rawPid)
-    {
-        var providerIds = rawPid?.Split(Separator);
-        return new ProviderIdModel
-        {
-            Provider = providerIds?.Length > 0 ? providerIds[0] : string.Empty,
-            Id = providerIds?.Length > 1 ? providerIds[1] : string.Empty,
-            Position = providerIds?.Length > 2 ? ParseDouble(providerIds[2]) : null,
-            UpdateInfo = providerIds?.Length > 3 ? ParseBool(providerIds[3]) : null
-        };
-    }
-
-    private const char Separator = ':';
-
-    private static double? ParseDouble(string s)
-    {
-        try
-        {
-            return double.Parse(s);
-        }
-        catch (Exception)
-        {
-            return null;
-        }
-    }
-
-    private static bool? ParseBool(string s)
-    {
-        switch (s)
-        {
-            case "1":
-            case "t":
-            case "T":
-            case "true":
-            case "True":
-            case "TRUE":
-                return true;
-            case "0":
-            case "f":
-            case "F":
-            case "false":
-            case "False":
-            case "FALSE":
-                return false;
-        }
-
-        return null;
-    }
 }
\ No newline at end of file