diff --git a/ins_avx512.x86.raw.xml b/ins_avx512.x86.raw.xml
index 4a4ad47..dac4d63 100644
--- a/ins_avx512.x86.raw.xml
+++ b/ins_avx512.x86.raw.xml
@@ -1,5 +1,8 @@
 <?xml version="1.0" encoding="ASCII"?>
 <!DOCTYPE x86ins SYSTEM "ins_rules.dtd">
+<!--
+https://github.com/MahdiSafsafi/Parsable-Instructions
+-->
 <!-- Copyright (c) 2015 Mahdi Safsafi
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
diff --git a/ins_az.x86.raw.xml b/ins_az.x86.raw.xml
index dbe2e90..a0a43da 100644
--- a/ins_az.x86.raw.xml
+++ b/ins_az.x86.raw.xml
@@ -1,5 +1,8 @@
 <?xml version="1.0" encoding="ASCII"?>
 <!DOCTYPE x86ins SYSTEM "ins_rules.dtd">
+<!--
+https://github.com/MahdiSafsafi/Parsable-Instructions
+-->
 <!-- Copyright (c) 2015 Mahdi Safsafi
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
diff --git a/ins_rules.dtd b/ins_rules.dtd
index 51ff90c..0dc7e3b 100644
--- a/ins_rules.dtd
+++ b/ins_rules.dtd
@@ -1,4 +1,7 @@
 <?xml version="1.0" encoding="ASCII"?>
+<!--
+https://github.com/MahdiSafsafi/Parsable-Instructions
+-->
 
 <!-- XML data must be validated.
      If XML validation failed ,you probably have a corrupted data !