diff --git a/src/NzbDrone.Core/MediaFiles/FileExtensions.cs b/src/NzbDrone.Core/MediaFiles/FileExtensions.cs
index dbd2efb9a..ee55e54b2 100644
--- a/src/NzbDrone.Core/MediaFiles/FileExtensions.cs
+++ b/src/NzbDrone.Core/MediaFiles/FileExtensions.cs
@@ -23,7 +23,9 @@ internal static class FileExtensions
 
         private static List<string> _dangerousExtensions = new List<string>
         {
+            ".arj",
             ".lnk",
+            ".lzh",
             ".ps1",
             ".scr",
             ".vbs",