BUG: fixed small issue
BUG: fixed small issue

Former-commit-id: 8c0f8ce5969c4b2f31801a5a3a86edadfcfbf6ec
Former-commit-id: 4751d533474a92c8db83b98762ae099d8d3b374e
3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox