diff --git a/wp-admin/includes/schema.php b/wp-admin/includes/schema.php
index c5b7be694b..cfc8d91881 100644
--- a/wp-admin/includes/schema.php
+++ b/wp-admin/includes/schema.php
@@ -358,7 +358,7 @@ function populate_options() {
 	   or a valid timezone string (America/New_York). See http://us3.php.net/manual/en/timezones.php
 	   for all timezone strings supported by PHP.
 	*/
-	$offset_or_tz = __( '0', 'default GMT offset or timezone string' );
+	$offset_or_tz = _x( '0', 'default GMT offset or timezone string' );
 	if ( is_numeric( $offset_or_tz ) )
 		$gmt_offset = $offset_or_tz;
 	elseif ( $offset_or_tz && in_array( $offset_or_tz, timezone_identifiers_list() ) )