diff --git a/Emby.Naming/Common/NamingOptions.cs b/Emby.Naming/Common/NamingOptions.cs
index e9161a6b7b..39c3ceeb3d 100644
--- a/Emby.Naming/Common/NamingOptions.cs
+++ b/Emby.Naming/Common/NamingOptions.cs
@@ -141,8 +141,7 @@ namespace Emby.Naming.Common
             VideoFileStackingRules = new[]
             {
                 new FileStackRule(@"^(?<filename>.*?)(?:(?<=[\]\)\}])|[ _.-]+)[\(\[]?(?<parttype>cd|dvd|part|pt|dis[ck])[ _.-]*(?<number>[0-9]+)[\)\]]?(?:\.[^.]+)?$", true),
-                new FileStackRule(@"^(?<filename>.*?)(?:(?<=[\]\)\}])|[ _.-]+)[\(\[]?(?<parttype>cd|dvd|part|pt|dis[ck])[ _.-]*(?<number>[a-d])[\)\]]?(?:\.[^.]+)?$", false),
-                new FileStackRule(@"^(?<filename>.*?)(?:(?<=[\]\)\}])|[ _.-]?)(?<number>[a-d])(?:\.[^.]+)?$", false)
+                new FileStackRule(@"^(?<filename>.*?)(?:(?<=[\]\)\}])|[ _.-]+)[\(\[]?(?<parttype>cd|dvd|part|pt|dis[ck])[ _.-]*(?<number>[a-d])[\)\]]?(?:\.[^.]+)?$", false)
             };
 
             CleanDateTimes = new[]