diff --git a/crates/service/storyteller_web/src/http_server/endpoints/investor_demo/disable_demo_mode_handler.rs b/crates/service/storyteller_web/src/http_server/endpoints/investor_demo/disable_demo_mode_handler.rs
index 1d26ef0cf..e21aa5ad1 100644
--- a/crates/service/storyteller_web/src/http_server/endpoints/investor_demo/disable_demo_mode_handler.rs
+++ b/crates/service/storyteller_web/src/http_server/endpoints/investor_demo/disable_demo_mode_handler.rs
@@ -53,7 +53,7 @@ pub async fn disable_demo_mode_handler(
       .permanent();
 
   if let Some(cookie_domain) = maybe_cookie_domain {
-    cookie_builder = cookie_builder.domain("api.storyteller.io");
+    cookie_builder = cookie_builder.domain(cookie_domain);
   }
 
   let cookie = cookie_builder.finish();
diff --git a/crates/service/storyteller_web/src/http_server/endpoints/investor_demo/enable_demo_mode_handler.rs b/crates/service/storyteller_web/src/http_server/endpoints/investor_demo/enable_demo_mode_handler.rs
index fc181f0a0..97affac70 100644
--- a/crates/service/storyteller_web/src/http_server/endpoints/investor_demo/enable_demo_mode_handler.rs
+++ b/crates/service/storyteller_web/src/http_server/endpoints/investor_demo/enable_demo_mode_handler.rs
@@ -52,7 +52,7 @@ pub async fn enable_demo_mode_handler(
       .permanent();
 
   if let Some(cookie_domain) = maybe_cookie_domain {
-    cookie_builder = cookie_builder.domain("api.storyteller.io");
+    cookie_builder = cookie_builder.domain(cookie_domain);
   }
 
   let cookie = cookie_builder.finish();