diff --git a/src/ImageSharp/ImageExtensions.cs b/src/ImageSharp/ImageExtensions.cs
index 24d2ad49b..3cb4f433e 100644
--- a/src/ImageSharp/ImageExtensions.cs
+++ b/src/ImageSharp/ImageExtensions.cs
@@ -2,7 +2,9 @@
 // Licensed under the Apache License, Version 2.0.
 
 using System;
+#if !SUPPORTS_BASE64SPAN
 using System.Buffers;
+#endif
 using System.Collections.Generic;
 using System.IO;
 using System.Text;