diff --git a/src/ImageSharp/Formats/Webp/WebpFormatType.cs b/src/ImageSharp/Formats/Webp/WebpFormatType.cs
index fdeb1447e5..5ef47f6e0f 100644
--- a/src/ImageSharp/Formats/Webp/WebpFormatType.cs
+++ b/src/ImageSharp/Formats/Webp/WebpFormatType.cs
@@ -8,11 +8,6 @@ namespace SixLabors.ImageSharp.Formats.Webp
     /// </summary>
     public enum WebpFormatType
     {
-        /// <summary>
-        /// Unknown webp format.
-        /// </summary>
-        Unknown,
-
         /// <summary>
         /// The lossless webp format.
         /// </summary>