diff --git a/.env.development b/.env.development
index 7d4255adab..bdedaaab7d 100644
--- a/.env.development
+++ b/.env.development
@@ -31,4 +31,4 @@ RAILS_DB_PORT=5432
 RAILS_DB_NAME=manifold_production
 RAILS_REDIS_URL=redis://redis:6379
 
-REACT_APP_ALLOW_SIGNUP=true
+ALLOW_SIGNUP=false
diff --git a/chart/princeton-manifold/templates/configmap-env.yaml b/chart/princeton-manifold/templates/configmap-env.yaml
index 158d76b573..598617d82f 100644
--- a/chart/princeton-manifold/templates/configmap-env.yaml
+++ b/chart/princeton-manifold/templates/configmap-env.yaml
@@ -8,6 +8,7 @@ metadata:
     app.kubernetes.io/instance: {{ .Release.Name }}
     app.kubernetes.io/managed-by: {{ .Release.Service }}
 data:
+  ALLOW_SIGNUP: "false"
   API_CABLE_HOST: princeton-manifold-production-api-cable
   API_CABLE_PORT: "3021"
   API_HOST: princeton-manifold-production-api-rails
diff --git a/client/src/global/components/sign-in-up/LoginForm/index.js b/client/src/global/components/sign-in-up/LoginForm/index.js
index 045937ba31..92ccb20c95 100644
--- a/client/src/global/components/sign-in-up/LoginForm/index.js
+++ b/client/src/global/components/sign-in-up/LoginForm/index.js
@@ -20,7 +20,7 @@ export default function LoginForm({
   hideOverlay,
   willRedirect
 }) {
-  const signupEnabled = process.env.REACT_APP_ALLOW_SIGNUP === 'true';
+  const signupEnabled = process.env.ALLOW_SIGNUP === 'true';
   const { t } = useTranslation();
   const dispatch = useDispatch();
   const authentication = useFromStore("authentication");
diff --git a/client/webpack/templates/www_env.ejs b/client/webpack/templates/www_env.ejs
index a5ce7022df..87c95c1dec 100644
--- a/client/webpack/templates/www_env.ejs
+++ b/client/webpack/templates/www_env.ejs
@@ -5,4 +5,5 @@ process.env.DOMAIN = "<%= env.DOMAIN %>"
 process.env.CLIENT_BROWSER_API_URL = "<%= env.CLIENT_BROWSER_API_URL %>"
 process.env.CLIENT_BROWSER_API_CABLE_URL = "<%= env.CLIENT_BROWSER_API_CABLE_URL %>"
 process.env.SSL_ENABLED = "<%= env.SSL_ENABLED %>"
+process.env.ALLOW_SIGNUP = "<%= env.ALLOW_SIGNUP %>"
 process.version = "<%= process.version %>"