diff --git a/sync/engine/src/sparse_io.rs b/sync/engine/src/sparse_io.rs
index 8571c9678..f89098c70 100644
--- a/sync/engine/src/sparse_io.rs
+++ b/sync/engine/src/sparse_io.rs
@@ -54,6 +54,7 @@ pub struct SparseLinuxFile {
     file: RwLock<std::fs::File>,
 }
 
+#[allow(clippy::readonly_write_lock)]
 impl File for SparseLinuxFile {
     #[instrument(err, skip_all, level = Level::TRACE)]
     fn lock_file(&self, _exclusive: bool) -> Result<()> {