diff --git a/archive.gemspec b/archive.gemspec
index ad64d89..f9f9d7b 100644
--- a/archive.gemspec
+++ b/archive.gemspec
@@ -57,7 +57,7 @@ if bundle_update_flag
                   if sub_info_index != -1
                     update_flag = true
                     force_cover = true
-                    sub_info[sub_info_index][sub_info_index]["name"] = h["name"]
+                    sub_info[sub_info_index]["name"] = h["name"]
                   end
                 end
                 if sub_info_index == -1