diff --git a/de4dot.code/deobfuscators/MaxtoCode/Deobfuscator.cs b/de4dot.code/deobfuscators/MaxtoCode/Deobfuscator.cs
index 63e5ffbe..62b57472 100644
--- a/de4dot.code/deobfuscators/MaxtoCode/Deobfuscator.cs
+++ b/de4dot.code/deobfuscators/MaxtoCode/Deobfuscator.cs
@@ -27,7 +27,7 @@ namespace de4dot.code.deobfuscators.MaxtoCode {
 	public class DeobfuscatorInfo : DeobfuscatorInfoBase {
 		public const string THE_NAME = "MaxtoCode";
 		public const string THE_TYPE = "mc";
-		const string DEFAULT_REGEX = @"!^[oO01l]+$&" + DeobfuscatorBase.DEFAULT_VALID_NAME_REGEX;
+		const string DEFAULT_REGEX = @"!^[oO01l]+$&!^[A-F0-9]{20,}$&" + DeobfuscatorBase.DEFAULT_VALID_NAME_REGEX;
 		IntOption stringCodePage;
 
 		public DeobfuscatorInfo()