diff --git a/core/src/sync/compat.rs b/core/src/sync/compat.rs
index 19c604b..f1e6a1d 100644
--- a/core/src/sync/compat.rs
+++ b/core/src/sync/compat.rs
@@ -411,7 +411,9 @@ mod tests {
         // this one for the OnceLock, and whichever lost would see the other's name.
         // One test, both branches, in order.
         assert!(
-            client_headers()[0].1.starts_with("thoughtsync-unidentified/"),
+            client_headers()[0]
+                .1
+                .starts_with("thoughtsync-unidentified/"),
             "a host that never introduced itself must say so"
         );