diff --git a/server/RdtClient.Data/Models/Internal/DbSettings.cs b/server/RdtClient.Data/Models/Internal/DbSettings.cs
index 3866aa9..01bf906 100644
--- a/server/RdtClient.Data/Models/Internal/DbSettings.cs
+++ b/server/RdtClient.Data/Models/Internal/DbSettings.cs
@@ -47,7 +47,7 @@ public class DbSettingsGeneral
     public Int32 UnpackLimit { get; set; } = 1;
 
     [DisplayName("Categories")]
-    [Description("Expose these categories through the QBittorrent API.")]
+    [Description("Expose these categories through the QBittorrent API. Define multiple categories by separating them with a comma.")]
     public String? Categories { get; set; } = null;
 
     [DisplayName("Run external program on torrent completion")]
diff --git a/server/RdtClient.Service/Services/Torrents.cs b/server/RdtClient.Service/Services/Torrents.cs
index f87d14b..1188556 100644
--- a/server/RdtClient.Service/Services/Torrents.cs
+++ b/server/RdtClient.Service/Services/Torrents.cs
@@ -713,9 +713,18 @@ public class Torrents
         var downloadPath = DownloadPath(torrent);
         var torrentPath = Path.Combine(downloadPath, torrent.RdName ?? "Unknown");
 
+        var filePath = torrentPath;
+
+        var files = Directory.GetFiles(filePath);
+
+        if (files.Length == 1)
+        {
+            filePath = Path.Combine(torrentPath, files[0]);
+        }
+
         arguments = arguments.Replace("%N", $"\"{torrent.RdName}\"");
         arguments = arguments.Replace("%L", $"\"{torrent.Category}\"");
-        arguments = arguments.Replace("%F", $"\"{torrentPath}\"");
+        arguments = arguments.Replace("%F", $"\"{filePath}\"");
         arguments = arguments.Replace("%R", $"\"{downloadPath}\"");
         arguments = arguments.Replace("%D", $"\"{torrentPath}\"");
         arguments = arguments.Replace("%C", downloads.Count.ToString(CultureInfo.InvariantCulture).Replace(",", "").Replace(".", ""));