diff --git a/src/ImageSharp/Formats/ImageDecoder.cs b/src/ImageSharp/Formats/ImageDecoder.cs
index 695e9c8446..591f85df2b 100644
--- a/src/ImageSharp/Formats/ImageDecoder.cs
+++ b/src/ImageSharp/Formats/ImageDecoder.cs
@@ -1,5 +1,6 @@
 // Copyright (c) Six Labors.
 // Licensed under the Six Labors Split License.
+#nullable disable
 
 using SixLabors.ImageSharp.IO;
 using SixLabors.ImageSharp.PixelFormats;