diff --git a/application/Config/Events.php b/application/Config/Events.php
index 8b2fcd4a4e89..97c732ab30a6 100644
--- a/application/Config/Events.php
+++ b/application/Config/Events.php
@@ -30,6 +30,12 @@
 	Events::on('DBQuery', 'CodeIgniter\Debug\Toolbar\Collectors\Database::collect');
 
 	Events::on('pre_system', function () {
+		if (ENVIRONMENT !== 'testing')
+		{
+			\ob_start(function ($buffer) {
+				return $buffer;
+			});
+		}
 		Services::toolbar()->respond();
 	});
 }