diff --git a/pc/peer_connection_simulcast_unittest.cc b/pc/peer_connection_simulcast_unittest.cc
index f975d370c7..f61d1e0687 100644
--- a/pc/peer_connection_simulcast_unittest.cc
+++ b/pc/peer_connection_simulcast_unittest.cc
@@ -986,7 +986,10 @@ class PeerConnectionSimulcastWithMediaFlowTests
       rtc::scoped_refptr<PeerConnectionTestWrapper> pc_wrapper) {
     auto callback = rtc::make_ref_counted<MockRTCStatsCollectorCallback>();
     pc_wrapper->pc()->GetStats(callback.get());
-    EXPECT_TRUE_WAIT(callback->called(), kDefaultTimeout.ms());
+    while (!callback->called()) {
+      rtc::Thread::Current()->ProcessMessages(0);
+      rtc::Thread::Current()->SleepMs(1);
+    }
     return callback->report();
   }