diff --git a/crates/matrix-sdk-crypto/src/types/events/utd_cause.rs b/crates/matrix-sdk-crypto/src/types/events/utd_cause.rs
index 55ca4e0f22a..b88a7898cda 100644
--- a/crates/matrix-sdk-crypto/src/types/events/utd_cause.rs
+++ b/crates/matrix-sdk-crypto/src/types/events/utd_cause.rs
@@ -158,7 +158,7 @@ mod tests {
         assert_eq!(
             UtdCause::determine(
                 &raw_event(json!({})),
-                device_new_with_backup(),
+                device_old_no_backup(),
                 &missing_megolm_session()
             ),
             UtdCause::Unknown
@@ -393,6 +393,13 @@ mod tests {
         Raw::from_json(to_raw_value(&value).unwrap())
     }
 
+    fn device_old_no_backup() -> CryptoContextInfo {
+        CryptoContextInfo {
+            device_creation_ts: MilliSecondsSinceUnixEpoch((1111).try_into().unwrap()),
+            is_backup_configured: false,
+        }
+    }
+
     fn device_old_with_backup() -> CryptoContextInfo {
         CryptoContextInfo {
             device_creation_ts: MilliSecondsSinceUnixEpoch((1111).try_into().unwrap()),