diff --git a/backend/tests/http.rs b/backend/tests/http.rs
index 43087b3..61a3d48 100644
--- a/backend/tests/http.rs
+++ b/backend/tests/http.rs
@@ -168,7 +168,8 @@ async fn sign_in() -> Result<(), Box<dyn Error>> {
     // Assert.
     response.assert_status_see_other(); // Redirection after successful sign in.
     response.assert_text("");
-    response.assert_header("location", "/en/"); // English is the default language.
+    // English is the default language.
+    response.assert_header("location", "/en/?user_message=16&user_message_icon=0");
     dbg!(&response);
 
     Ok(())