diff --git a/frontend_tests/node_tests/lib/events.js b/frontend_tests/node_tests/lib/events.js
index 4b11fcaea3..eabe6ca1e9 100644
--- a/frontend_tests/node_tests/lib/events.js
+++ b/frontend_tests/node_tests/lib/events.js
@@ -156,8 +156,8 @@ exports.fixtures = {
     muted_topics: {
         type: "muted_topics",
         muted_topics: [
-            ["devel", "js"],
-            ["lunch", "burritos"],
+            ["devel", "js", fake_then],
+            ["lunch", "burritos", fake_now],
         ],
     },