diff --git a/tools_webrtc/sanitizers/tsan_suppressions_webrtc.cc b/tools_webrtc/sanitizers/tsan_suppressions_webrtc.cc
index 3eb85e9fb5..a704018e17 100644
--- a/tools_webrtc/sanitizers/tsan_suppressions_webrtc.cc
+++ b/tools_webrtc/sanitizers/tsan_suppressions_webrtc.cc
@@ -45,6 +45,11 @@ char kTSanDefaultSuppressions[] =
     // https://code.google.com/p/webrtc/issues/detail?id=5151
     "race:sctp_close\n"
 
+    // lock-order-inversion in usrsctp
+    // TODO(orphis): https://crbug.com/webrtc/12823
+    "deadlock:usrsctp_conninput\n"
+    "deadlock:usrsctp_connect\n"
+
     // Potential deadlocks detected after roll in r6516.
     // https://code.google.com/p/webrtc/issues/detail?id=3509
     "deadlock:webrtc::test::UdpSocketManagerPosixImpl::RemoveSocket\n"