diff --git a/LibreNMS/Util/CiHelper.php b/LibreNMS/Util/CiHelper.php
index b2fdc7221d29df98d3176b3b363976f5ae8aa1a9..665f3c2ec7576efda04339d76163177e2e2ab65d 100644
--- a/LibreNMS/Util/CiHelper.php
+++ b/LibreNMS/Util/CiHelper.php
@@ -225,7 +225,7 @@ class CiHelper
             array_push($phpunit_cmd, '--group', 'svg');
         } elseif ($this->flags['unit_modules'] || $this->flags['os-modules-only']) {
             if ($this->flags['os-modules-only']) {
-                array_push($phpunit_cmd, '--filter', "/::testOS /");
+                array_push($phpunit_cmd, '--filter', '/::testOS /');
             }
             $phpunit_cmd[] = 'tests/OSModulesTest.php';
         }