diff --git a/LibreNMS/Util/CiHelper.php b/LibreNMS/Util/CiHelper.php
index b28e0119b2..ff0561b195 100644
--- a/LibreNMS/Util/CiHelper.php
+++ b/LibreNMS/Util/CiHelper.php
@@ -186,7 +186,7 @@ class CiHelper
             $filter = implode('.*|', $this->os);
             // include tests that don't have data providers and only data sets that match
             array_push($phpunit_cmd, '--group', 'os');
-            array_push($phpunit_cmd, '--filter', "/::test[A-Za-z]+$|::test[A-Za-z]+ with data set \"$filter .*\"$/");
+            array_push($phpunit_cmd, '--filter', "/::test[A-Za-z]+$|::test[A-Za-z]+ with data set \"$filter.*\"$/");
         } elseif ($this->flags['unit_docs']) {
             array_push($phpunit_cmd, '--group', 'docs');
         } elseif ($this->flags['unit_svg']) {