diff --git a/virtweb_backend/src/app_config.rs b/virtweb_backend/src/app_config.rs
index 4ce9bea..9181120 100644
--- a/virtweb_backend/src/app_config.rs
+++ b/virtweb_backend/src/app_config.rs
@@ -134,14 +134,19 @@ impl AppConfig {
 
     /// Get auth cookie domain
     pub fn cookie_domain(&self) -> Option<String> {
-        let domain = self.website_origin.split_once("://")?.1;
-        Some(
-            domain
-                .split_once(':')
-                .map(|s| s.0)
-                .unwrap_or(domain)
-                .to_string(),
-        )
+        if cfg!(debug_assertions) {
+            let domain = self.website_origin.split_once("://")?.1;
+            Some(
+                domain
+                    .split_once(':')
+                    .map(|s| s.0)
+                    .unwrap_or(domain)
+                    .to_string(),
+            )
+        } else {
+            // In release mode, the web app is hosted on the same origin as the API
+            None
+        }
     }
 
     /// Get app secret