diff --git a/MimeKit/Utils/ParseUtils.cs b/MimeKit/Utils/ParseUtils.cs
index f5c7f98e83..f7f76b8412 100644
--- a/MimeKit/Utils/ParseUtils.cs
+++ b/MimeKit/Utils/ParseUtils.cs
@@ -390,7 +390,7 @@ public static bool TryParseDomain (byte[] text, ref int index, int endIndex, Rea
 			return TryParseDotAtom (text, ref index, endIndex, sentinels, throwOnError, "domain", out domain);
 		}
 
-		static ReadOnlySpan<byte> GreaterThanOrAt => new[] { (byte) '>', (byte) '@' };
+		static ReadOnlySpan<byte> GreaterThanOrAt => ">@"u8;
 
 		public static bool TryParseMsgId (byte[] text, ref int index, int endIndex, bool requireAngleAddr, bool throwOnError, out string msgid)
 		{