diff --git a/src/ImageSharp/Formats/Jpeg/JpegEncoderCore.cs b/src/ImageSharp/Formats/Jpeg/JpegEncoderCore.cs
index 71f9827e27..3fd1a3c489 100644
--- a/src/ImageSharp/Formats/Jpeg/JpegEncoderCore.cs
+++ b/src/ImageSharp/Formats/Jpeg/JpegEncoderCore.cs
@@ -265,7 +265,7 @@ namespace SixLabors.ImageSharp.Formats.Jpeg
         private void WriteDefineHuffmanTables(int componentCount)
         {
             // Table identifiers.
-            ReadOnlySpan<byte> headers = new byte[]
+            ReadOnlySpan<byte> headers = stackalloc byte[]
             {
                 0x00,
                 0x10,