diff --git a/webrtc/build/sanitizers/tsan_suppressions_webrtc.cc b/webrtc/build/sanitizers/tsan_suppressions_webrtc.cc
index b9c8f0bacc..4022160b52 100644
--- a/webrtc/build/sanitizers/tsan_suppressions_webrtc.cc
+++ b/webrtc/build/sanitizers/tsan_suppressions_webrtc.cc
@@ -82,6 +82,11 @@ char kTSanDefaultSuppressions[] =
 // https://code.google.com/p/webrtc/issues/detail?id=4719
 "race:webrtc::voe::TransmitMixer::PrepareDemux\n"
 "race:webrtc::voe::TransmitMixer::EnableStereoChannelSwapping\n"
+
+// Race between InitCpuFlags and TestCpuFlag in libyuv.
+// https://code.google.com/p/libyuv/issues/detail?id=508
+"race:libyuv::TestCpuFlag\n"
+
 // End of suppressions.
 ;  // Please keep this semicolon.