diff --git a/ghost/portal/src/components/ParentContainer.js b/ghost/portal/src/components/ParentContainer.js
index 6ab42ab33f..e28af739ae 100644
--- a/ghost/portal/src/components/ParentContainer.js
+++ b/ghost/portal/src/components/ParentContainer.js
@@ -12,9 +12,9 @@ export default class ParentContainer extends React.Component {
         super(props);
         console.log('Initialized script with data', props.data);
 
-        // Setup Members API with blog/admin URLs
-        const {blogUrl, adminUrl} = props.data.site;
-        this.MembersAPI = setupMembersApi({blogUrl, adminUrl});
+        // Setup Members API with site/admin URLs
+        const {siteUrl, adminUrl} = props.data.site;
+        this.MembersAPI = setupMembersApi({siteUrl, adminUrl});
 
         // Setup custom trigger button handling
         this.customTriggerButton = document.querySelector('[data-members-trigger-button]');
diff --git a/ghost/portal/src/components/PopupMenuComponent.js b/ghost/portal/src/components/PopupMenuComponent.js
index a9ae47e205..2615bdb3c6 100644
--- a/ghost/portal/src/components/PopupMenuComponent.js
+++ b/ghost/portal/src/components/PopupMenuComponent.js
@@ -73,14 +73,14 @@ export default class PopupMenuComponent extends React.Component {
             marginBottom: '12px'
         };
 
-        const blogTitle = (this.props.data.site && this.props.data.site.title) || 'Site Title';
-        const blogDescription = (this.props.data.site && this.props.data.site.description) || 'Site Description';
+        const siteTitle = (this.props.data.site && this.props.data.site.title) || 'Site Title';
+        const siteDescription = (this.props.data.site && this.props.data.site.description) || 'Site Description';
         return (
             <div style={{display: 'flex', flexDirection: 'column', color: '#313131'}}>
                 <div style={{paddingLeft: '16px', paddingRight: '16px', paddingTop: '12px', cursor: 'pointer'}}>
                     <div style={{display: 'flex', flexDirection: 'column', alignItems: 'center', marginBottom: '12px'}}>
-                        <div style={{fontSize: '18px', fontWeight: 'bold'}}> Signup/Signin to {blogTitle}</div>
-                        <div>{blogDescription} </div>
+                        <div style={{fontSize: '18px', fontWeight: 'bold'}}> Signup/Signin to {siteTitle}</div>
+                        <div>{siteDescription} </div>
                     </div>
                     <div style={{display: 'flex', flexDirection: 'column', alignItems: 'center', marginBottom: '12px'}}>
                         <input
diff --git a/ghost/portal/src/index.js b/ghost/portal/src/index.js
index 838fd4ada8..1c7eafd66f 100644
--- a/ghost/portal/src/index.js
+++ b/ghost/portal/src/index.js
@@ -13,7 +13,7 @@ function initMembersJS(data) {
 }
 
 // Uncomment for local UI testing
-// initMembersJS({site: {blogUrl: "", adminUrl: ""}});
+// initMembersJS({site: {siteUrl: "", adminUrl: ""}});
 
 window.GhostMembers = {
     initMembersJS: initMembersJS
diff --git a/ghost/portal/src/utils/api.js b/ghost/portal/src/utils/api.js
index 21dfab1d87..a36a056904 100644
--- a/ghost/portal/src/utils/api.js
+++ b/ghost/portal/src/utils/api.js
@@ -1,6 +1,6 @@
-function createSignoutApi(blogUrl) {
+function createSignoutApi(siteUrl) {
     return function () {
-        fetch(`${blogUrl}/members/ssr`, {
+        fetch(`${siteUrl}/members/ssr`, {
             method: 'DELETE'
         }).then(function (res) {
             if (res.ok) {
@@ -35,9 +35,9 @@ function createSendMagicLinkApi(adminUrl) {
     };
 }
 
-function createCheckoutPlanApi(blogUrl) {
+function createCheckoutPlanApi(siteUrl) {
     return function ({plan, checkoutCancelUrl, checkoutSuccessUrl}) {
-        fetch(`${blogUrl}/members/ssr`, {
+        fetch(`${siteUrl}/members/ssr`, {
             credentials: 'same-origin'
         }).then(function (res) {
             if (!res.ok) {
@@ -77,12 +77,12 @@ function createCheckoutPlanApi(blogUrl) {
     };
 }
 
-/** blogUrl and adminUrl are being passed by theme */
-function setupMembersApi({blogUrl, adminUrl}) {
+/** siteUrl and adminUrl are being passed by theme */
+function setupMembersApi({siteUrl, adminUrl}) {
     return {
         sendMagicLink: createSendMagicLinkApi(adminUrl),
-        signout: createSignoutApi(blogUrl),
-        checkoutPlan: createCheckoutPlanApi(blogUrl)
+        signout: createSignoutApi(siteUrl),
+        checkoutPlan: createCheckoutPlanApi(siteUrl)
     };
 }