--- a/testing/talos/talos/startup_test/tspaint_test.html
+++ b/testing/talos/talos/startup_test/tspaint_test.html
@@ -27,17 +27,17 @@ async function painted() {
   if (window.dump) {
     dumpLog("__start_report" + startupTime + "__end_report\n\n");
   }
   dumpConsoleAndQuit();
 }
 
 function failed() {
   if (window.dump) {
-    dumpLog("BROWSER FAILED TO GENERATE MOZAFTERPAINT IN 5 SECONDS");
+    dumpLog("BROWSER FAILED TO GENERATE MOZAFTERPAINT IN 5 SECONDS\n");
   }
   dumpConsoleAndQuit();
 }
 
 function dumpConsoleAndQuit() {
   var messages = {};
 
   try {