diff --git a/103120/examples/json/response2.json b/103120/examples/json/response2.json
index 829c8a7f1c93b836b655e60706a052513d319f04..f049e4064cd703e2395f6d9d469aa4fcb3ed1c9f 100644
--- a/103120/examples/json/response2.json
+++ b/103120/examples/json/response2.json
@@ -33,7 +33,7 @@
                 "ObjectIdentifier": "7dbbc880-8750-4d3c-abe7-ea4a17646045",
                 "CountryCode": "XX",
                 "OwnerIdentifier": "ACTOR01",
-                "Generation": "1",
+                "Generation": 1,
                 "LastChanged": "2015-09-01T12:00:00Z",
                 "auth:AuthorisationReference": "W000001",
                 "auth:AuthorisationStatus": {
@@ -46,7 +46,7 @@
                   "auth:EndTime": "2015-12-01T12:00:00Z"
                 },
                 "auth:AuthorisationInvalidReason": {
-                  "ErrorCode": "3000",
+                  "ErrorCode": 3000,
                   "ErrorDescription": "The Authorisation is not associated with a valid Warrant Document Object"
                 }
               }
@@ -60,7 +60,7 @@
                 "ObjectIdentifier": "2b36a78b-b628-416d-bd22-404e68a0cd36",
                 "CountryCode": "XX",
                 "OwnerIdentifier": "ACTOR01",
-                "Generation": "1",
+                "Generation": 1,
                 "AssociatedObjects": {
                   "AssociatedObject": [
                     "7dbbc880-8750-4d3c-abe7-ea4a17646045"
@@ -105,7 +105,7 @@
                   "UniqueIdentifier": "ACTOR02"
                 },
                 "task:InvalidReason": {
-                  "ErrorCode": "3000",
+                  "ErrorCode": 3000,
                   "ErrorDescription": "The associated Authorisation is in an Invalid state"
                 }
               }
diff --git a/103120/examples/json/response3.json b/103120/examples/json/response3.json
index 87bca95d06ebcc7bf42e585b21732cde66e5a14c..b2bbbc43f2a38be8baacbe8dab385244cabf8d2a 100644
--- a/103120/examples/json/response3.json
+++ b/103120/examples/json/response3.json
@@ -41,7 +41,7 @@
                 "ObjectIdentifier": "7dbbc880-8750-4d3c-abe7-ea4a17646045",
                 "CountryCode": "XX",
                 "OwnerIdentifier": "ACTOR01",
-                "Generation": "2",
+                "Generation": 2,
                 "AssociatedObjects": {
                   "AssociatedObject": [
                     "4193f541-5e19-468e-b4a3-1c636ce115e9"
diff --git a/utils/xml_to_json.py b/utils/xml_to_json.py
index 7caebb6b9e195594c494dbc6fc1d512c2727be84..a89777f553533ee2c7b008bdc170ee0a605159b9 100644
--- a/utils/xml_to_json.py
+++ b/utils/xml_to_json.py
@@ -72,7 +72,9 @@ coerce_to_list = [
 coerce_to_int = [
     'ActionIdentifier',
     'delivery:SequenceNumber',
-    'task:Order'
+    'task:Order',
+    'ErrorCode',
+    'Generation',
 ]
 
 coerce_to_bool = [