diff --git a/lib/DDG/Goodie/IsValid/JSON.pm b/lib/DDG/Goodie/IsValid/JSON.pm
index ae384492bd1..116908e3e69 100644
--- a/lib/DDG/Goodie/IsValid/JSON.pm
+++ b/lib/DDG/Goodie/IsValid/JSON.pm
@@ -5,6 +5,9 @@ use DDG::Goodie;
 use Try::Tiny;
 use JSON qw(from_json);
 
+attribution github  => ['https://github.com/AlexBio', 'AlexBio'  ],
+            web     => ['http://ghedini.me', 'Alessandro Ghedini'];
+
 zci answer_type => 'isvalid';
 zci is_cached   => 1;
 
diff --git a/lib/DDG/Goodie/IsValid/XML.pm b/lib/DDG/Goodie/IsValid/XML.pm
index 6e778e41d89..d395a9d6846 100644
--- a/lib/DDG/Goodie/IsValid/XML.pm
+++ b/lib/DDG/Goodie/IsValid/XML.pm
@@ -5,6 +5,9 @@ use DDG::Goodie;
 use Try::Tiny;
 use XML::Simple;
 
+attribution github  => ['https://github.com/AlexBio', 'AlexBio'  ],
+            web     => ['http://ghedini.me', 'Alessandro Ghedini'];
+
 zci answer_type => 'isvalid';
 zci is_cached   => 1;