diff --git a/public/index.html b/public/index.html
index d5736c0c..67c23870 100644
--- a/public/index.html
+++ b/public/index.html
@@ -110,6 +110,7 @@
     <% } %> <% if (CONFIGURATION_SOURCE === 'Caddy') { %>
     <script type="text/javascript">
       let SSI_API_URL = '{{env "API_URL"}}'
+      let SSI_APP_ENV = '{{env "APP_ENV"}}'
       let SSI_AWS_CLIENT_ID = '{{env "AWS_CLIENT_ID"}}'
       let SSI_OIDC_AUTHORITY_URL = '{{env "OIDC_AUTHORITY_URL"}}'
       let SSI_OAUTH2_REDIRECT_URL = '{{env "OAUTH2_REDIRECT_URL"}}'