diff --git a/registry/storage/driver/s3-aws/s3.go b/registry/storage/driver/s3-aws/s3.go
index 8753b3455..de6ea648d 100644
--- a/registry/storage/driver/s3-aws/s3.go
+++ b/registry/storage/driver/s3-aws/s3.go
@@ -1539,5 +1539,5 @@ func (w *writer) flushPart() error {
 	})
 	w.readyPart = w.pendingPart
 	w.pendingPart = nil
-	return nil
+	return w.flushPart()
 }