diff --git a/core/server/api/canary/utils/serializers/output/mappers/newsletters.js b/core/server/api/canary/utils/serializers/output/mappers/newsletters.js
index ca302105a0..ff23088d86 100644
--- a/core/server/api/canary/utils/serializers/output/mappers/newsletters.js
+++ b/core/server/api/canary/utils/serializers/output/mappers/newsletters.js
@@ -10,6 +10,7 @@ module.exports = (model, frame) => {
             name: jsonModel.name,
             description: jsonModel.description,
             slug: jsonModel.slug,
+            subscribe_on_signup: jsonModel.subscribe_on_signup,
             visibility: jsonModel.visibility,
             sort_order: jsonModel.sort_order,
             created_at: jsonModel.created_at,
diff --git a/test/e2e-api/content/__snapshots__/newsletters.test.js.snap b/test/e2e-api/content/__snapshots__/newsletters.test.js.snap
index 74303efb39..9ed419a7c6 100644
--- a/test/e2e-api/content/__snapshots__/newsletters.test.js.snap
+++ b/test/e2e-api/content/__snapshots__/newsletters.test.js.snap
@@ -20,6 +20,7 @@ Object {
       "name": "Default Newsletter",
       "slug": "default-newsletter",
       "sort_order": 0,
+      "subscribe_on_signup": true,
       "updated_at": StringMatching /\\\\d\\{4\\}-\\\\d\\{2\\}-\\\\d\\{2\\}T\\\\d\\{2\\}:\\\\d\\{2\\}:\\\\d\\{2\\}\\\\\\.000Z/,
       "uuid": StringMatching /\\[a-f0-9\\]\\{8\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{12\\}/,
       "visibility": "members",
@@ -31,6 +32,7 @@ Object {
       "name": "Daily newsletter",
       "slug": "daily-newsletter",
       "sort_order": 1,
+      "subscribe_on_signup": false,
       "updated_at": StringMatching /\\\\d\\{4\\}-\\\\d\\{2\\}-\\\\d\\{2\\}T\\\\d\\{2\\}:\\\\d\\{2\\}:\\\\d\\{2\\}\\\\\\.000Z/,
       "uuid": StringMatching /\\[a-f0-9\\]\\{8\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{12\\}/,
       "visibility": "members",
@@ -42,6 +44,7 @@ Object {
       "name": "Weekly newsletter",
       "slug": "weekly-newsletter",
       "sort_order": 2,
+      "subscribe_on_signup": true,
       "updated_at": StringMatching /\\\\d\\{4\\}-\\\\d\\{2\\}-\\\\d\\{2\\}T\\\\d\\{2\\}:\\\\d\\{2\\}:\\\\d\\{2\\}\\\\\\.000Z/,
       "uuid": StringMatching /\\[a-f0-9\\]\\{8\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{12\\}/,
       "visibility": "members",
@@ -54,7 +57,7 @@ exports[`Newsletters Content API Can request only active newsletters 2: [headers
 Object {
   "access-control-allow-origin": "*",
   "cache-control": "no-cache, private, no-store, must-revalidate, max-stale=0, post-check=0, pre-check=0",
-  "content-length": "918",
+  "content-length": "1000",
   "content-type": "application/json; charset=utf-8",
   "etag": StringMatching /\\(\\?:W\\\\/\\)\\?"\\(\\?:\\[ !#-\\\\x7E\\\\x80-\\\\xFF\\]\\*\\|\\\\r\\\\n\\[\\\\t \\]\\|\\\\\\\\\\.\\)\\*"/,
   "vary": "Accept-Encoding",
@@ -82,6 +85,7 @@ Object {
       "name": "Default Newsletter",
       "slug": "default-newsletter",
       "sort_order": 0,
+      "subscribe_on_signup": true,
       "updated_at": StringMatching /\\\\d\\{4\\}-\\\\d\\{2\\}-\\\\d\\{2\\}T\\\\d\\{2\\}:\\\\d\\{2\\}:\\\\d\\{2\\}\\\\\\.000Z/,
       "uuid": StringMatching /\\[a-f0-9\\]\\{8\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{12\\}/,
       "visibility": "members",
@@ -93,6 +97,7 @@ Object {
       "name": "Daily newsletter",
       "slug": "daily-newsletter",
       "sort_order": 1,
+      "subscribe_on_signup": false,
       "updated_at": StringMatching /\\\\d\\{4\\}-\\\\d\\{2\\}-\\\\d\\{2\\}T\\\\d\\{2\\}:\\\\d\\{2\\}:\\\\d\\{2\\}\\\\\\.000Z/,
       "uuid": StringMatching /\\[a-f0-9\\]\\{8\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{12\\}/,
       "visibility": "members",
@@ -104,6 +109,7 @@ Object {
       "name": "Weekly newsletter",
       "slug": "weekly-newsletter",
       "sort_order": 2,
+      "subscribe_on_signup": true,
       "updated_at": StringMatching /\\\\d\\{4\\}-\\\\d\\{2\\}-\\\\d\\{2\\}T\\\\d\\{2\\}:\\\\d\\{2\\}:\\\\d\\{2\\}\\\\\\.000Z/,
       "uuid": StringMatching /\\[a-f0-9\\]\\{8\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{12\\}/,
       "visibility": "members",
@@ -116,7 +122,7 @@ exports[`Newsletters Content API Cannot override filters to fetch archived newsl
 Object {
   "access-control-allow-origin": "*",
   "cache-control": "no-cache, private, no-store, must-revalidate, max-stale=0, post-check=0, pre-check=0",
-  "content-length": "918",
+  "content-length": "1000",
   "content-type": "application/json; charset=utf-8",
   "etag": StringMatching /\\(\\?:W\\\\/\\)\\?"\\(\\?:\\[ !#-\\\\x7E\\\\x80-\\\\xFF\\]\\*\\|\\\\r\\\\n\\[\\\\t \\]\\|\\\\\\\\\\.\\)\\*"/,
   "vary": "Accept-Encoding",
diff --git a/test/unit/api/canary/utils/serializers/output/mapper.test.js b/test/unit/api/canary/utils/serializers/output/mapper.test.js
index 270750fe00..41665525d9 100644
--- a/test/unit/api/canary/utils/serializers/output/mapper.test.js
+++ b/test/unit/api/canary/utils/serializers/output/mapper.test.js
@@ -239,6 +239,7 @@ describe('Unit: utils/serializers/output/mappers', function () {
                 name: newsletter.name,
                 description: newsletter.description,
                 slug: newsletter.slug,
+                subscribe_on_signup: newsletter.subscribe_on_signup,
                 visibility: newsletter.visibility,
                 sort_order: newsletter.sort_order,
                 created_at: newsletter.created_at,