diff --git a/QuickLook.Plugin/QuickLook.Plugin.VideoViewer/Plugin.cs b/QuickLook.Plugin/QuickLook.Plugin.VideoViewer/Plugin.cs
index edd4d19..df3701f 100644
--- a/QuickLook.Plugin/QuickLook.Plugin.VideoViewer/Plugin.cs
+++ b/QuickLook.Plugin/QuickLook.Plugin.VideoViewer/Plugin.cs
@@ -30,7 +30,7 @@ namespace QuickLook.Plugin.VideoViewer
         private static readonly string[] Formats =
         {
             // video
-            ".3g2", ".3gp", ".3gp2", ".3gpp", ".amv", ".asf", ".asf", ".avi", ".flv", ".m2ts", ".m4v", ".mkv",
+            ".3g2", ".3gp", ".3gp2", ".3gpp", ".amv", ".asf", ".asf", ".avi", ".flv", ".mts", ".m2ts", ".m4v", ".mkv",
             ".mov", ".mp4", ".mp4v", ".mpeg", ".mpg", ".ogv", ".qt", ".vob", ".webm", ".wmv",
             // audio
             ".3gp", ".aa", ".aac", ".aax", ".act", ".aiff", ".amr", ".ape", ".au", ".awb", ".dct", ".dss", ".dvf",