1 files changed, 1 insertions, 1 deletions
diff --git a/toolkit/components/url-classifier/tests/mochitest/test_classify_by_default.html b/toolkit/components/url-classifier/tests/mochitest/test_classify_by_default.html
index c10a0c62f9..a3ede628e0 100644
--- a/toolkit/components/url-classifier/tests/mochitest/test_classify_by_default.html
+++ b/toolkit/components/url-classifier/tests/mochitest/test_classify_by_default.html
@@ -77,7 +77,7 @@ async function setupAndRun(hasCookie, topLevelSite = TEST_TOP_SITE) {
   });
 }
 
-async function cleanup(topLevelSite = TEST_TOP_SITE) {
+async function cleanup() {
   function clearServiceWorker() {
     return new Promise(resolve => {
       let w;