diff --git a/core/server/api/canary/utils/serializers/output/products.js b/core/server/api/canary/utils/serializers/output/products.js
index e40ad16bd0..5bd8d81836 100644
--- a/core/server/api/canary/utils/serializers/output/products.js
+++ b/core/server/api/canary/utils/serializers/output/products.js
@@ -1,6 +1,7 @@
 //@ts-check
 const debug = require('@tryghost/debug')('api:canary:utils:serializers:output:products');
 const _ = require('lodash');
+const utils = require('../../../../shared/utils');
 
 const allowedIncludes = ['stripe_prices', 'monthly_price', 'yearly_price'];
 
@@ -22,7 +23,7 @@ module.exports = {
  */
 function paginatedProducts(page, _apiConfig, frame) {
     const requestedQueryIncludes = frame.original && frame.original.query && frame.original.query.include && frame.original.query.include.split(',') || [];
-    const requestedOptionsIncludes = frame.original && frame.original.options && frame.original.options.include || [];
+    const requestedOptionsIncludes = utils.options.trimAndLowerCase(frame.original && frame.original.options && frame.original.options.include || []);
     return {
         products: page.data.map((model) => {
             return cleanIncludes(
diff --git a/core/server/api/canary/utils/serializers/output/tiers.js b/core/server/api/canary/utils/serializers/output/tiers.js
index cb45286b0e..7e0c376581 100644
--- a/core/server/api/canary/utils/serializers/output/tiers.js
+++ b/core/server/api/canary/utils/serializers/output/tiers.js
@@ -3,6 +3,7 @@ const debug = require('@tryghost/debug')('api:canary:utils:serializers:output:ti
 const _ = require('lodash');
 
 const allowedIncludes = ['monthly_price', 'yearly_price'];
+const utils = require('../../../../shared/utils');
 
 module.exports = {
     browse: createSerializer('browse', paginatedTiers),
@@ -22,7 +23,7 @@ module.exports = {
  */
 function paginatedTiers(page, _apiConfig, frame) {
     const requestedQueryIncludes = frame.original && frame.original.query && frame.original.query.include && frame.original.query.include.split(',') || [];
-    const requestedOptionsIncludes = frame.original && frame.original.options && frame.original.options.include || [];
+    const requestedOptionsIncludes = utils.options.trimAndLowerCase(frame.original && frame.original.options && frame.original.options.include || []);
     return {
         tiers: page.data.map((model) => {
             return cleanIncludes(