diff --git a/pandora_console/include/rest-api/models/VisualConsole/Items/Group.php b/pandora_console/include/rest-api/models/VisualConsole/Items/Group.php
index c2841f36fd..90ff422ad1 100644
--- a/pandora_console/include/rest-api/models/VisualConsole/Items/Group.php
+++ b/pandora_console/include/rest-api/models/VisualConsole/Items/Group.php
@@ -115,7 +115,7 @@ final class Group extends Item
      *
      * @return boolean If the statistics should be shown or not.
      */
-    private static function extractShowStatistics(array $data): boolean
+    private static function extractShowStatistics(array $data): bool
     {
         return static::parseBool(
             static::issetInArray($data, ['showStatistics', 'show_statistics'])