output: Fix build
output: Fix build

See #4484

mdhender/hugo,gohugoio/hugo,fedelibre/hugo,fedelibre/hugo,anthonyfok/hugo,gohugoio/hugo,anthonyfok/hugo,mdhender/hugo,fedelibre/hugo,mdhender/hugo,gohugoio/hugo,anthonyfok/hugo,mdhender/hugo,fedelibre/hugo