diff --git a/wp-admin/update-core.php b/wp-admin/update-core.php
index 0e4f5d287..9fc103cdc 100644
--- a/wp-admin/update-core.php
+++ b/wp-admin/update-core.php
@@ -70,7 +70,7 @@ function list_core_update( $update ) {
 	if ( 'en_US' != $update->locale && ( !isset($wp_local_package) || $wp_local_package != $update->locale ) )
 	    echo '<p class="hint">'.__('This localized version contains both the translation and various other localization fixes. You can skip upgrading if you want to keep your current translation.').'</p>';
 	else if ( 'en_US' == $update->locale && get_locale() != 'en_US' ) {
-	    echo '<p class="hint">'.sprintf( __('You are about to install WordPress %s <strong>in English.</strong> There is a chance this upgrade will break your translation. You may prefer to wait for the localized version to be released.'), $update->current ).'</p>';
+	    echo '<p class="hint">'.sprintf( __('You are about to install WordPress %s <strong>in English (US).</strong> There is a chance this upgrade will break your translation. You may prefer to wait for the localized version to be released.'), $update->current ).'</p>';
 	}
 	echo '</form>';