diff --git a/Jellyfin.Plugin.TubeArchivistMetadata/Configuration/PluginConfiguration.cs b/Jellyfin.Plugin.TubeArchivistMetadata/Configuration/PluginConfiguration.cs
index cbc98ad..7d35854 100644
--- a/Jellyfin.Plugin.TubeArchivistMetadata/Configuration/PluginConfiguration.cs
+++ b/Jellyfin.Plugin.TubeArchivistMetadata/Configuration/PluginConfiguration.cs
@@ -125,7 +125,19 @@ namespace Jellyfin.Plugin.TubeArchivistMetadata.Configuration
 
             set
             {
-                value.Replace(" ", string.Empty, StringComparison.CurrentCulture).Split(',').ToList().ForEach(u => _jfUsernamesTo.Add(u));
+                // Clear existing usernames
+                _jfUsernamesTo.Clear();
+                
+                // Split by comma, then trim each part to remove leading/trailing spaces
+                foreach (var username in value.Split(','))
+                {
+                    var trimmedUsername = username.Trim();
+                    if (!string.IsNullOrEmpty(trimmedUsername))
+                    {
+                        _jfUsernamesTo.Add(trimmedUsername);
+                    }
+                }
+                
                 _logger.LogDebug("Set JFUsernamesTo to: {Message}", value);
             }
         }