diff --git a/.github/workflows/prod-stg-deploy.yml b/.github/workflows/prod-stg-deploy.yml
index c391f711..3dc1bcdd 100644
--- a/.github/workflows/prod-stg-deploy.yml
+++ b/.github/workflows/prod-stg-deploy.yml
@@ -135,12 +135,14 @@ jobs:
         shell: bash
         run: |
           if [[ "${{ steps.vars.outputs.deploy_env }}" == "staging" ]]; then
-            INSTALL_DEV=true
+            APP_ENV="staging"
           else
-            INSTALL_DEV=false
+            APP_ENV="production"
           fi
 
           docker build \
+            --build-arg APP_ENV="$APP_ENV" \
+            --build-arg BUILD_TARGET="${{ env.BUILD_TARGET }}" \
             --build-arg SENTRY_DSN=${{env.SENTRY_DSN}} \
             --build-arg GA_TRACKING_CODE=${{secrets.GA_TRACKING_CODE}} \
             --build-arg ICONS_PUBLIC_PATH=${{env.ICONS_PUBLIC_PATH}} \
diff --git a/Dockerfile b/Dockerfile
index 44b7ce7c..f3a213cb 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,7 @@
 FROM node:18-alpine
 
 ARG BUILD_TARGET=azure
+ARG APP_ENV=production
 ARG SENTRY_DSN
 ARG NODE_ENV=production
 ARG NPM_TOKEN
@@ -13,7 +14,8 @@ ENV SENTRY_DSN=$SENTRY_DSN \
     GA_TRACKING_CODE=$GA_TRACKING_CODE \
     API_KEY=$API_KEY \
     ICONS_PUBLIC_PATH=$ICONS_PUBLIC_PATH \
-    BUILD_TARGET=$BUILD_TARGET
+    BUILD_TARGET=$BUILD_TARGET \
+    APP_ENV=$APP_ENV
 
 
 WORKDIR /app
diff --git a/env.config.js b/env.config.js
index 2f45da02..a100a0a1 100644
--- a/env.config.js
+++ b/env.config.js
@@ -1,11 +1,16 @@
 const NODE_ENV = process.env.NODE_ENV || 'development'
+const APP_ENV = process.env.APP_ENV || NODE_ENV
 
 const local = {
   API_URL: 'http://127.0.0.1:8000/internal',
 }
 
 const development = {
-  API_URL: 'https://api-dev.core.ac.uk/internal',
+  API_URL: 'https://api-stg.core.ac.uk/internal',
+}
+
+const staging = {
+  API_URL: 'https://api-stg.core.ac.uk/internal',
 }
 
 const production = {
@@ -17,10 +22,10 @@ const validate = (config) =>
     if (config[param] == null) throw new Error(`${param} is not configured.`)
   })
 
-const env = { local, development, production }
+const env = { local, development, staging, production }
 const config = {
   ...env.production,
-  ...env[NODE_ENV],
+  ...(env[APP_ENV] || {}),
   API_KEY: process.env.API_KEY,
   SENTRY_DSN: process.env.SENTRY_DSN,
   GA_TRACKING_CODE: process.env.GA_TRACKING_CODE,
diff --git a/templates/search/results.jsx b/templates/search/results.jsx
index c97ce44f..1c314e28 100644
--- a/templates/search/results.jsx
+++ b/templates/search/results.jsx
@@ -24,7 +24,7 @@ const Results = ({ works, searchId }) =>
       thumbnail_m: thumbnailLink,
       display: displayLink,
     }) => {
-      const memberType = checkType(dataProviders?.[0].id)
+      const memberType = checkType(dataProviders?.[0]?.id)
       const fullTextLink = links.find((l) => l.type === 'download')?.url
       const metadataLink = links.find((l) => l.type === 'display')?.url
       const router = useRouter()