diff --git a/wp-cron.php b/wp-cron.php
index d487770f71..ca478e4c46 100644
--- a/wp-cron.php
+++ b/wp-cron.php
@@ -76,6 +76,8 @@ if ( empty( $crons ) ) {
 	die();
 }
 
+$gmt_time = microtime( true );
+
 // The cron lock: a unix timestamp from when the cron was spawned.
 $doing_cron_transient = get_transient( 'doing_cron' );
 
diff --git a/wp-includes/version.php b/wp-includes/version.php
index c066529c38..0ad528530c 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.1-alpha-44504';
+$wp_version = '5.1-alpha-44505';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.