Fix https://github.com/huggingface/transformers/issues/1673
# [Codecov](https://codecov.io/gh/huggingface/transformers/pull/1679?src=pr&el=h1) Report
> Merging [#1679](https://codecov.io/gh/huggingface/transformers/pull/1679?src=pr&el=desc) into [master](https://codecov.io/gh/huggingface/transformers/commit/fa735208c96c18283b8d2f3fcbfc3157bbd12b1e?src=pr&el=desc) will **increase** coverage by `0.05%`.
> The diff coverage is `n/a`.

[![Impacted file tree graph](https://codecov.io/gh/huggingface/transformers/pull/1679/graphs/tree.svg?width=650&token=9qOlN6Hb1c&height=150&src=pr)](https://codecov.io/gh/huggingface/transformers/pull/1679?src=pr&el=tree)

```diff
@@            Coverage Diff             @@
##           master    #1679      +/-   ##
==========================================
+ Coverage   85.08%   85.14%   +0.05%     
==========================================
  Files          94       94              
  Lines       13920    13920              
==========================================
+ Hits        11844    11852       +8     
+ Misses       2076     2068       -8
```


| [Impacted Files](https://codecov.io/gh/huggingface/transformers/pull/1679?src=pr&el=tree) | Coverage Δ | |
|---|---|---|
| [transformers/modeling\_utils.py](https://codecov.io/gh/huggingface/transformers/pull/1679/diff?src=pr&el=tree#diff-dHJhbnNmb3JtZXJzL21vZGVsaW5nX3V0aWxzLnB5) | `92.44% <ø> (+1.45%)` | :arrow_up: |
| [transformers/tests/modeling\_common\_test.py](https://codecov.io/gh/huggingface/transformers/pull/1679/diff?src=pr&el=tree#diff-dHJhbnNmb3JtZXJzL3Rlc3RzL21vZGVsaW5nX2NvbW1vbl90ZXN0LnB5) | `76.49% <0%> (+0.59%)` | :arrow_up: |

------

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> `Δ = absolute <relative> (impact)`, `ø = not affected`, `? = missing data`
> Powered by [Codecov](https://codecov.io/gh/huggingface/transformers/pull/1679?src=pr&el=footer). Last update [fa73520...ac29353](https://codecov.io/gh/huggingface/transformers/pull/1679?src=pr&el=lastupdated). Read the [comment docs](https://docs.codecov.io/docs/pull-request-comments).
<|||||>This looks good to me!<|||||>Yes indeed, thanks!