diff --git a/schema.graphql b/schema.graphql
index e5ae8edec..6ac1d7462 100644
--- a/schema.graphql
+++ b/schema.graphql
@@ -2731,12 +2731,13 @@ type LockedEvent implements Node {
 }
 
 # A public description of a Marketplace category.
-type MarketplaceCategory {
+type MarketplaceCategory implements Node {
   # The category's description.
   description: String
 
   # The technical description of how apps listed in this category work with GitHub.
   howItWorks: String
+  id: ID!
 
   # The category's name.
   name: String!
diff --git a/schema.json b/schema.json
index 7cc4e76ce..6d7335705 100644
--- a/schema.json
+++ b/schema.json
@@ -947,6 +947,11 @@
             "name": "LockedEvent",
             "ofType": null
           },
+          {
+            "kind": "OBJECT",
+            "name": "MarketplaceCategory",
+            "ofType": null
+          },
           {
             "kind": "OBJECT",
             "name": "MarketplaceListing",
@@ -18332,6 +18337,22 @@
             "isDeprecated": false,
             "deprecationReason": null
           },
+          {
+            "name": "id",
+            "description": null,
+            "args": [],
+            "type": {
+              "kind": "NON_NULL",
+              "name": null,
+              "ofType": {
+                "kind": "SCALAR",
+                "name": "ID",
+                "ofType": null
+              }
+            },
+            "isDeprecated": false,
+            "deprecationReason": null
+          },
           {
             "name": "name",
             "description": "The category's name.",
@@ -18430,7 +18451,13 @@
           }
         ],
         "inputFields": null,
-        "interfaces": [],
+        "interfaces": [
+          {
+            "kind": "INTERFACE",
+            "name": "Node",
+            "ofType": null
+          }
+        ],
         "enumValues": null,
         "possibleTypes": null
       },