diff --git a/scripts/generate-i18n-messages.ts b/scripts/generate-i18n-messages.ts
index a31c993d..312a3e5a 100644
--- a/scripts/generate-i18n-messages.ts
+++ b/scripts/generate-i18n-messages.ts
@@ -139,6 +139,20 @@ async function generateI18nMessages() {
             "messages_defaultSet"
         );
 
+        fs.writeFileSync(
+            pathJoin(messagesDirPath, "LanguageTag.ts"),
+            Buffer.from(
+                [
+                    ``,
+                    `export const languageTags = ${JSON.stringify(languages, null, 2)} as const;`,
+                    ``,
+                    `export type LanguageTag = typeof languageTags[number];`,
+                    ``
+                ].join("\n"),
+                "utf8"
+            )
+        );
+
         const generatedFileHeader = [
             `//This code was automatically generated by running ${pathRelative(
                 thisCodebaseRootDirPath,
diff --git a/src/bin/keycloakify/generateResources/generateMessageProperties.ts b/src/bin/keycloakify/generateResources/generateMessageProperties.ts
index 4ae374b2..48c54a3e 100644
--- a/src/bin/keycloakify/generateResources/generateMessageProperties.ts
+++ b/src/bin/keycloakify/generateResources/generateMessageProperties.ts
@@ -29,7 +29,9 @@ export function generateMessageProperties(params: {
         Object.fromEntries(
             fs
                 .readdirSync(baseMessagesDirPath)
-                .filter(baseName => baseName !== "index.ts")
+                .filter(
+                    basename => basename !== "index.ts" && basename !== "LanguageTag.ts"
+                )
                 .map(basename => ({
                     languageTag: basename.replace(/\.ts$/, ""),
                     filePath: pathJoin(baseMessagesDirPath, basename)