diff --git a/src/wp-includes/meta.php b/src/wp-includes/meta.php
index 6982e618c3..6c8a1350ef 100644
--- a/src/wp-includes/meta.php
+++ b/src/wp-includes/meta.php
@@ -312,7 +312,7 @@ function update_metadata( $meta_type, $object_id, $meta_key, $meta_value, $prev_
 	}
 
 	$result = $wpdb->update( $table, $data, $where );
-	if ( ! $result ) {
+	if ( false === $result ) {
 		return false;
 	}