diff --git a/.env.test b/.env.test
index eb92b7582..2495522d8 100644
--- a/.env.test
+++ b/.env.test
@@ -9,6 +9,6 @@ IDENTITY_API_URL=https://preprod.teaching-identity.education.gov.uk/
 IDENTITY_SHARED_SECRET_KEY=testkey
 IDENTITY_USER_TOKEN=testkey
 REDIS_URL=redis://localhost:6379/1
-SLACK_WEBHOOK_URL=test
+SLACK_WEBHOOK=test
 SUPPORT_PASSWORD=test
 SUPPORT_USERNAME=test
diff --git a/app/services/slack_client.rb b/app/services/slack_client.rb
index 9ca599e7a..d5eff9a8c 100644
--- a/app/services/slack_client.rb
+++ b/app/services/slack_client.rb
@@ -17,7 +17,7 @@ def create_message(message)
   private
 
   def client
-    Faraday.new(url: ENV.fetch("SLACK_WEBHOOK_URL")) do |faraday|
+    Faraday.new(url: ENV.fetch("SLACK_WEBHOOK")) do |faraday|
       faraday.request :json
       faraday.response :json
       faraday.response :logger, nil, { bodies: true, headers: true }