diff --git a/md/annex-b.md b/md/annex-b.md
index 23b52df999761cfa62bef744cfdb710008281c0b..618090c77e2dd6a51097a4b924fded3a0b8cd604 100644
--- a/md/annex-b.md
+++ b/md/annex-b.md
@@ -21,7 +21,7 @@ Such definition has been tested using [i.19].
           "@id": "ngsi-ld:attributeName",
           "@type": "@vocab"
         },
-        "attributeCount": "attributeCount",
+        "attributeCount": "ngsi-ld:attributeCount",
         "attributeTypes": {
           "@id": "ngsi-ld:attributeTypes",
           "@type": "@vocab"
@@ -107,7 +107,7 @@ Such definition has been tested using [i.19].
     "EntityTypeInfo": {
       "@id": "ngsi-ld:EntityTypeInfo",
       "@context": {
-        "attributeDetails": "attributeDetails",
+        "attributeDetails": "ngsi-ld:attributeDetails",
         "entityCount": "ngsi-ld:entityCount",
         "typeName": {
           "@id": "ngsi-ld:typeName",