diff --git a/tools/lsan/suppressions.txt b/tools/lsan/suppressions.txt
index 53cbf96bd1..b57d0eecb9 100644
--- a/tools/lsan/suppressions.txt
+++ b/tools/lsan/suppressions.txt
@@ -13,8 +13,11 @@ leak:std::string::_Rep::_S_create
 
 # libjingle_peerconnection_unittest
 # https://code.google.com/p/webrtc/issues/detail?id=2528
+leak:webrtc::AudioDeviceLinuxALSA::InitMicrophone
 leak:webrtc::AudioDeviceLinuxALSA::InitSpeaker
+leak:webrtc::FakeConstraints::AddOptional
 leak:webrtc::WebRtcIdentityRequestObserver::OnSuccess
+leak:WebRtcSdpTest::TestDeserializeRtcpFb
 
 # libjingle_unittest
 # https://code.google.com/p/webrtc/issues/detail?id=2527