diff --git a/wp-admin/includes/template.php b/wp-admin/includes/template.php
index 07d5fed55b..644857f5eb 100644
--- a/wp-admin/includes/template.php
+++ b/wp-admin/includes/template.php
@@ -535,6 +535,8 @@ function meta_form() {
 <?php
 
 	foreach ( $keys as $key ) {
+		if ( is_protected_meta( $key, 'post' ) )
+			continue;
 		echo "\n<option value='" . esc_attr($key) . "'>" . esc_html($key) . "</option>";
 	}
 ?>