diff --git a/object.go b/object.go
index 3b2bddb..cd2fe1a 100644
--- a/object.go
+++ b/object.go
@@ -626,7 +626,7 @@ func SplitFileIntoChunks(filePath string, partSize int64) (int64, []Chunk, int,
 			return 0, nil, 0, errors.New("Too many parts, out of 10000")
 		}
 	} else {
-		partNum, partSize = DividePart(stat.Size(), 1)
+		partNum, partSize = DividePart(stat.Size(), 64)
 	}
 
 	var chunks []Chunk