diff --git a/extension.json b/extension.json
index b051000..6505292 100644
--- a/extension.json
+++ b/extension.json
@@ -7,6 +7,19 @@
 	"license-name": "MIT",
 	"type": "media",
 	"manifest_version": 1,
+    "namespaces": [
+        {
+            "id": 2218,
+            "constant": "NS_AV_ANNOT",
+            "name": "Annotation",
+            "protection": "annotations-edit"
+        },
+        {
+            "id": 2219,
+            "constant": "NS_AV_ANNOT_TALK",
+            "name": "Annotation_talk"
+        }
+    ],
 	"AutoloadNamespaces": {
 		"MediaWiki\\Extension\\AnatImageViewer\\": "includes/"
     },