diff --git a/classes/output/manageworkflows/renderable.php b/classes/output/manageworkflows/renderable.php
index 1a57c97..264f584 100644
--- a/classes/output/manageworkflows/renderable.php
+++ b/classes/output/manageworkflows/renderable.php
@@ -215,7 +215,7 @@ public function query_db($pagesize, $useinitialsbar = true) {
         $workflows = \tool_trigger\workflow_manager::get_workflows_paginated($this->get_page_start(), $this->get_page_size());
         // Sort inactive arrays to the bottom.
         usort($workflows, function($a, $b) {
-            return ($a->active < $b->active);
+            return (int)($a->active < $b->active);
         });
         $this->rawdata = $workflows;
         // Set initial bars.