diff --git a/nifi-registry-core/nifi-registry-web-ui/src/main/webapp/nf-registry-bootstrap.js b/nifi-registry-core/nifi-registry-web-ui/src/main/webapp/nf-registry-bootstrap.js
index 1825858..4ad63a8 100644
--- a/nifi-registry-core/nifi-registry-web-ui/src/main/webapp/nf-registry-bootstrap.js
+++ b/nifi-registry-core/nifi-registry-web-ui/src/main/webapp/nf-registry-bootstrap.js
@@ -43,7 +43,7 @@
 const providers = [];
 
 // No locale or U.S. English: no translation providers so go ahead and bootstrap the app
-if (!locale || locale === 'en-US') {
+if (!locale || locale === 'en-us') {
     bootstrapModule();
 } else { //load the translation providers and bootstrap the module
     var translationFile = 'locale/messages.' + locale + '.xlf';