diff --git a/wp-admin/includes/menu.php b/wp-admin/includes/menu.php
index 03d9bece87..1eae8576c7 100644
--- a/wp-admin/includes/menu.php
+++ b/wp-admin/includes/menu.php
@@ -215,7 +215,8 @@ if ( apply_filters('custom_menu_order', false) ) {
 }
 
 // Remove the last menu item if it is a separator.
-$last_menu_key = array_pop( $last_menu_key = array_keys( $menu ) );
+$last_menu_key = array_keys( $menu );
+$last_menu_key = array_pop( $last_menu_key );
 if ( !empty( $menu ) && 'wp-menu-separator' == $menu[ $last_menu_key ][ 4 ] )
 	unset( $menu[ $last_menu_key ] );
 unset( $last_menu_key );
diff --git a/wp-includes/pomo/mo.php b/wp-includes/pomo/mo.php
index 683d3ed6a5..d76cda5c6b 100644
--- a/wp-includes/pomo/mo.php
+++ b/wp-includes/pomo/mo.php
@@ -195,7 +195,8 @@ class MO extends Gettext_Translations {
 			$translation = $reader->substr( $strings, $t['pos'], $t['length'] );
 
 			if ('' === $original) {
-				$this->set_headers($this->make_headers($translation));
+				$headers = $this->make_headers($translation);
+				$this->set_headers($headers);
 			} else {
 				$entry = &$this->make_entry($original, $translation);
 				$this->entries[$entry->key()] = &$entry;