diff --git a/eth/downloader/beaconsync.go b/eth/downloader/beaconsync.go
index 05127f570e..12b74a1ba9 100644
--- a/eth/downloader/beaconsync.go
+++ b/eth/downloader/beaconsync.go
@@ -252,7 +252,7 @@ func (d *Downloader) findBeaconAncestor() (uint64, error) {
 		h := d.skeleton.Header(check)
 		if h == nil {
 			return 0, fmt.Errorf("filled skeleton header is missing: %d", check)
-		} 
+		}
 		n := h.Number.Uint64()
 
 		var known bool