diff --git a/deploy-config/demo.yml b/deploy-config/demo.yml
index 2787b130e..4963c71cb 100644
--- a/deploy-config/demo.yml
+++ b/deploy-config/demo.yml
@@ -7,3 +7,4 @@ cloud_dot_gov_route: notify-demo.app.cloud.gov
 redis_enabled: 1
 nr_agent_id: '1134302465'
 nr_app_id: '1083160688'
+FEATURE_SOCKET_ENABLED: true
diff --git a/deploy-config/production.yml b/deploy-config/production.yml
index c27f93744..848f71569 100644
--- a/deploy-config/production.yml
+++ b/deploy-config/production.yml
@@ -7,3 +7,4 @@ cloud_dot_gov_route: notify.app.cloud.gov
 redis_enabled: 1
 nr_agent_id: '1050708682'
 nr_app_id: '1050708682'
+FEATURE_SOCKET_ENABLED: false
diff --git a/deploy-config/sandbox.yml b/deploy-config/sandbox.yml
index 58180f409..bde81ac5f 100644
--- a/deploy-config/sandbox.yml
+++ b/deploy-config/sandbox.yml
@@ -9,6 +9,7 @@ ADMIN_CLIENT_USERNAME: notify-admin
 ADMIN_CLIENT_SECRET: sandbox-notify-secret-key
 DANGEROUS_SALT: sandbox-notify-salt
 SECRET_KEY: sandbox-notify-secret-key
+FEATURE_SOCKET_ENABLED: true
 nr_agent_id: ''
 nr_app_id: ''
 NR_BROWSER_KEY: ''
diff --git a/deploy-config/staging.yml b/deploy-config/staging.yml
index 0feb07a7f..de5eee0a6 100644
--- a/deploy-config/staging.yml
+++ b/deploy-config/staging.yml
@@ -7,3 +7,4 @@ cloud_dot_gov_route: notify-staging.app.cloud.gov
 redis_enabled: 1
 nr_agent_id: '1134291385'
 nr_app_id: '1031640326'
+FEATURE_SOCKET_ENABLED: false
diff --git a/manifest.yml b/manifest.yml
index 8f8bae937..e1f48aa57 100644
--- a/manifest.yml
+++ b/manifest.yml
@@ -62,3 +62,4 @@ applications:
       LOGIN_DOT_GOV_CERTS_URL: ((LOGIN_DOT_GOV_CERTS_URL))
 
       # feature flagging
+      FEATURE_SOCKET_ENABLED: ((FEATURE_SOCKET_ENABLED))