diff --git a/news/changelog-1.12.md b/news/changelog-1.12.md
index 0e0057a58e..d2d04339a8 100644
--- a/news/changelog-1.12.md
+++ b/news/changelog-1.12.md
@@ -21,6 +21,7 @@ All changes included in 1.12:
 
 - ([#14822](https://github.com/quarto-dev/quarto-cli/issues/14822)): Translate the `tools-share`, `tools-download`, and `skip-to-content` language keys in Greek. (author: @sogav21)
 - ([#14822](https://github.com/quarto-dev/quarto-cli/issues/14822)): The Lithuanian search label and the Swedish caution callout title no longer fall back to English.
+- ([#15126](https://github.com/quarto-dev/quarto-cli/issues/15126)): Translate the `revealjs-menu-button-label` language key in Brazilian Portuguese. (author: @bonijoao)
 - ([#15223](https://github.com/quarto-dev/quarto-cli/pull/15223)): Directories are now read in a fixed order (sorted by name in character-code order, not by locale) on every platform.
   Extension discovery, the theme list of `quarto capabilities`, and the items of a MECA bundle no longer depend on the file system's listing order; when two extensions share an id, which one wins can differ from earlier versions.
 - ([#15268](https://github.com/quarto-dev/quarto-cli/issues/15268)): Translate the `skip-to-content` language key in Bulgarian, Catalan, Czech, Danish, Finnish, Hebrew, Indonesian, Korean, Lithuanian, Norwegian Bokmål, Norwegian Nynorsk, Polish, Russian, Serbian (Latin), Slovak, Slovenian, Swedish, Turkish and Ukrainian, using reviewed machine translation.
diff --git a/src/resources/language/_language-pt-BR.yml b/src/resources/language/_language-pt-BR.yml
index 194242e3c2..de03f25f7e 100644
--- a/src/resources/language/_language-pt-BR.yml
+++ b/src/resources/language/_language-pt-BR.yml
@@ -99,6 +99,9 @@ navigation-breadcrumbs-label: "Caminho"           # libreoffice sw 'Path' (attes
 scrollable-code-label: "Código deslocável"   # firefox devtools + code-summary — assembled, needs review
 scrollable-output-label: "Saída deslocável"  # firefox devtools + libreoffice dbaccess — assembled, needs review
 
+# Accessible name for the Reveal.js slide menu button (never shown as visible text).
+revealjs-menu-button-label: "Menu de slides"
+
 crossref-fig-title: "Figura"
 crossref-tbl-title: "Tabela"
 crossref-lst-title: "Listagem"