diff --git a/packages/commons/src/lib/i18n.ts b/packages/commons/src/lib/i18n.ts
index d251250998..4831c3178e 100644
--- a/packages/commons/src/lib/i18n.ts
+++ b/packages/commons/src/lib/i18n.ts
@@ -19,7 +19,7 @@ const UNSORTED_LOCALES = [
     { id: "en-GB", name: "English (United Kingdom)", electronLocale: "en_GB" },
     { id: "es", name: "Español", electronLocale: "es" },
     { id: "fr", name: "Français", electronLocale: "fr" },
-    { id: "ga", name: "Gaeilge", electronLocale: "ga" },
+    { id: "ga", name: "Gaeilge", electronLocale: "en" },
     { id: "it", name: "Italiano", electronLocale: "it" },
     { id: "ja", name: "日本語", electronLocale: "ja" },
     { id: "pt_br", name: "Português (Brasil)", electronLocale: "pt_BR" },
diff --git a/packages/pdfjs-viewer/scripts/build.ts b/packages/pdfjs-viewer/scripts/build.ts
index 4a7e56880c..3a52bd8b25 100644
--- a/packages/pdfjs-viewer/scripts/build.ts
+++ b/packages/pdfjs-viewer/scripts/build.ts
@@ -10,7 +10,8 @@ const build = new BuildHelper("packages/pdfjs-viewer");
 const watchMode = process.argv.includes("--watch");
 
 const LOCALE_MAPPINGS: Record<string, string> = {
-    "es": "es-ES"
+    "es": "es-ES",
+    "ga": "ga-IE"
 };
 
 async function main() {