diff --git a/Dalamud/Plugin/Internal/PluginManager.cs b/Dalamud/Plugin/Internal/PluginManager.cs
index 2634cbd30..52059da7e 100644
--- a/Dalamud/Plugin/Internal/PluginManager.cs
+++ b/Dalamud/Plugin/Internal/PluginManager.cs
@@ -763,7 +763,7 @@ internal partial class PluginManager : IDisposable, IServiceType
         }
 
         // Document the url the plugin was installed from
-        manifest.InstalledFromUrl = repoManifest.SourceRepo.PluginMasterUrl;
+        manifest.InstalledFromUrl = repoManifest.SourceRepo.IsThirdParty ? repoManifest.SourceRepo.PluginMasterUrl : LocalPluginManifest.FlagMainRepo;
 
         manifest.Save(manifestFile);
 
diff --git a/Dalamud/Plugin/Internal/Types/LocalPlugin.cs b/Dalamud/Plugin/Internal/Types/LocalPlugin.cs
index bd9351585..da4872ca0 100644
--- a/Dalamud/Plugin/Internal/Types/LocalPlugin.cs
+++ b/Dalamud/Plugin/Internal/Types/LocalPlugin.cs
@@ -217,8 +217,10 @@ internal class LocalPlugin : IDisposable
     /// <summary>
     /// Gets a value indicating whether or not this plugin is orphaned(belongs to a repo) or not.
     /// </summary>
-    public bool IsOrphaned => !this.IsDev && !this.Manifest.InstalledFromUrl.IsNullOrEmpty() &&
-                              Service<PluginManager>.Get().Repos.All(x => x.PluginMasterUrl != this.Manifest.InstalledFromUrl);
+    public bool IsOrphaned => !this.IsDev && 
+                              !this.Manifest.InstalledFromUrl.IsNullOrEmpty() && // TODO(api8): Remove this, all plugins will have a proper flag
+                              Service<PluginManager>.Get().Repos.All(x => x.PluginMasterUrl != this.Manifest.InstalledFromUrl) &&
+                              this.Manifest.InstalledFromUrl != LocalPluginManifest.FlagMainRepo;
 
     /// <summary>
     /// Gets a value indicating whether this plugin has been banned.
diff --git a/Dalamud/Plugin/Internal/Types/LocalPluginManifest.cs b/Dalamud/Plugin/Internal/Types/LocalPluginManifest.cs
index 634fbc75c..e3c44c21d 100644
--- a/Dalamud/Plugin/Internal/Types/LocalPluginManifest.cs
+++ b/Dalamud/Plugin/Internal/Types/LocalPluginManifest.cs
@@ -12,6 +12,9 @@ namespace Dalamud.Plugin.Internal.Types;
 /// </summary>
 internal record LocalPluginManifest : PluginManifest
 {
+    [JsonIgnore]
+    public const string FlagMainRepo = "OFFICIAL";
+    
     /// <summary>
     /// Gets or sets a value indicating whether the plugin is disabled and should not be loaded.
     /// This value supersedes the ".disabled" file functionality and should not be included in the plugin master.
@@ -40,7 +43,7 @@ internal record LocalPluginManifest : PluginManifest
     /// Gets a value indicating whether this manifest is associated with a plugin that was installed from a third party
     /// repo. Unless the manifest has been manually modified, this is determined by the InstalledFromUrl being null.
     /// </summary>
-    public bool IsThirdParty => !this.InstalledFromUrl.IsNullOrEmpty() && this.InstalledFromUrl != PluginRepository.MainRepoUrl;
+    public bool IsThirdParty => !this.InstalledFromUrl.IsNullOrEmpty() && this.InstalledFromUrl != FlagMainRepo;
 
     /// <summary>
     /// Gets the effective version of this plugin.