diff --git a/src/Jellyfin.MediaEncoding.Hls/Extractors/MatroskaKeyframeExtractor.cs b/src/Jellyfin.MediaEncoding.Hls/Extractors/MatroskaKeyframeExtractor.cs
index ee370fb01e..4bc537c0e1 100644
--- a/src/Jellyfin.MediaEncoding.Hls/Extractors/MatroskaKeyframeExtractor.cs
+++ b/src/Jellyfin.MediaEncoding.Hls/Extractors/MatroskaKeyframeExtractor.cs
@@ -26,7 +26,7 @@ public class MatroskaKeyframeExtractor : IKeyframeExtractor
     /// <inheritdoc />
     public bool TryExtractKeyframes(string filePath, [NotNullWhen(true)] out KeyframeData? keyframeData)
     {
-        if (filePath.AsSpan().EndsWith(".mkv", StringComparison.OrdinalIgnoreCase))
+        if (!filePath.AsSpan().EndsWith(".mkv", StringComparison.OrdinalIgnoreCase))
         {
             keyframeData = null;
             return false;