diff --git a/src/context.jsonld b/src/context.jsonld
index 6ffc880965001d5a11c1da554262b1476f2e3bde..46a6a866ed01aebf35c925b4abb7cdbb391c9a3b 100644
--- a/src/context.jsonld
+++ b/src/context.jsonld
@@ -4,5 +4,7 @@
         "object": "http://happy-dev.fr/owl/#object",
         "author": "http://happy-dev.fr/owl/#author",
         "account": "http://happy-dev.fr/owl/#account",
-        "jabberID": "foaf:jabberID"
+        "jabberID": "foaf:jabberID",
+        "firstName": "http://happy-dev.fr/owl/#first_name",
+        "lastName": "http://happy-dev.fr/owl/#last_name"
     }
diff --git a/src/header.pug b/src/header.pug
index b327da489a9623d07a2efcc19552183b15255cd9..9edcdb0e12782ddc595a7f9029d0d362a7a7cd95 100644
--- a/src/header.pug
+++ b/src/header.pug
@@ -18,7 +18,6 @@ details#user-controls
   summary(tabindex='0' role='button')
     sib-display#user-controls__profile(
       fields='firstName, account.picture'
-      extra-context='{firstName:"first_name"}'
       widget-account.picture='hd-user-avatar'
       bind-user
     )