diff --git a/tests/Core/Ruleset/ProcessRulesetShouldProcessElementTest.php b/tests/Core/Ruleset/ProcessRulesetShouldProcessElementTest.php
index 1f0780c44b..59fce1b198 100644
--- a/tests/Core/Ruleset/ProcessRulesetShouldProcessElementTest.php
+++ b/tests/Core/Ruleset/ProcessRulesetShouldProcessElementTest.php
@@ -215,6 +215,8 @@ public function testShouldProcessArgCbfonly()
      * Verify that in CS mode, phpcs-only <ini> directives are respected and phpcbf-only <ini>
      * directives are ignored.
      *
+     * @requires extension bcmath
+     *
      * @return void
      */
     public function testShouldProcessIniCsonly()
@@ -234,7 +236,8 @@ public function testShouldProcessIniCsonly()
      * Verify that in CBF mode, phpcbf-only <ini> directives are respected and phpcs-only <ini>
      * directives are ignored.
      *
-     * @group CBF
+     * @group    CBF
+     * @requires extension bcmath
      *
      * @return void
      */