1 files changed, 1 insertions, 1 deletions
diff --git a/toolkit/components/captivedetect/test/unit/test_captive_portal_not_found_404.js b/toolkit/components/captivedetect/test/unit/test_captive_portal_not_found_404.js
index 3f9d212a1f..c6608f9548 100644
--- a/toolkit/components/captivedetect/test/unit/test_captive_portal_not_found_404.js
+++ b/toolkit/components/captivedetect/test/unit/test_captive_portal_not_found_404.js
@@ -15,7 +15,7 @@ function xhr_handler(metadata, response) {
 }
 
 function fakeUIResponse() {
-  Services.obs.addObserver(function observe(subject, topic, data) {
+  Services.obs.addObserver(function observe(subject, topic) {
     if (topic === "captive-portal-login") {
       do_throw("should not receive captive-portal-login event");
     }