1 files changed, 3 insertions, 3 deletions
diff --git a/devtools/client/framework/test/browser_target_server_compartment.js b/devtools/client/framework/test/browser_target_server_compartment.js
index c0bd8e56f0..652f9e0bfb 100644
--- a/devtools/client/framework/test/browser_target_server_compartment.js
+++ b/devtools/client/framework/test/browser_target_server_compartment.js
@@ -26,7 +26,7 @@ async function testChromeTab() {
   );
 
   const onThreadActorInstantiated = new Promise(resolve => {
-    const observe = function (subject, topic, data) {
+    const observe = function (subject, topic) {
       if (topic === "devtools-thread-ready") {
         Services.obs.removeObserver(observe, "devtools-thread-ready");
         const threadActor = subject.wrappedJSObject;
@@ -62,7 +62,7 @@ async function testChromeTab() {
   );
 
   const onDedicatedLoaderDestroy = new Promise(resolve => {
-    const observe = function (subject, topic, data) {
+    const observe = function (subject, topic) {
       if (topic === "devtools:loader:destroy") {
         Services.obs.removeObserver(observe, "devtools:loader:destroy");
         resolve();
@@ -81,7 +81,7 @@ async function testChromeTab() {
 // Test that Main process Target can debug chrome scripts
 async function testMainProcess() {
   const onThreadActorInstantiated = new Promise(resolve => {
-    const observe = function (subject, topic, data) {
+    const observe = function (subject, topic) {
       if (topic === "devtools-thread-ready") {
         Services.obs.removeObserver(observe, "devtools-thread-ready");
         const threadActor = subject.wrappedJSObject;