diff --git a/api/layer/object.go b/api/layer/object.go
index b1a59a4d..e1dc75f5 100644
--- a/api/layer/object.go
+++ b/api/layer/object.go
@@ -593,6 +593,7 @@ func wrapReaderThreshold(input io.Reader, threshold int) io.Reader {
 			if err != nil {
 				_, _ = w.Write(buf[:cur])
 				_ = w.CloseWithError(err)
+				break
 			}
 			if cur < threshold {
 				continue