diff --git a/core/modules/outside_in/tests/src/FunctionalJavascript/OffCanvasTest.php b/core/modules/outside_in/tests/src/FunctionalJavascript/OffCanvasTest.php
index 4e3fc0e..fa84837 100644
--- a/core/modules/outside_in/tests/src/FunctionalJavascript/OffCanvasTest.php
+++ b/core/modules/outside_in/tests/src/FunctionalJavascript/OffCanvasTest.php
@@ -101,4 +101,11 @@ public function testNarrowWidth() {
     }
   }
 
+  /**
+   * {@inheritdoc}
+   */
+  protected function getTestThemes() {
+    return array_merge(parent::getTestThemes(), ['seven']);
+  }
+
 }