diff --git a/tools-webrtc/valgrind/gtest_exclude/rtc_media_unittests.gtest-memcheck.txt b/tools-webrtc/valgrind/gtest_exclude/rtc_media_unittests.gtest-memcheck.txt
index 89c11a373a..2ee09de77c 100644
--- a/tools-webrtc/valgrind/gtest_exclude/rtc_media_unittests.gtest-memcheck.txt
+++ b/tools-webrtc/valgrind/gtest_exclude/rtc_media_unittests.gtest-memcheck.txt
@@ -6,3 +6,6 @@ SctpDataMediaChannelTest.*
 
 # TODO(pbos): https://code.google.com/p/webrtc/issues/detail?id=4963
 WebRtcVideoChannel2BaseTest.*
+
+#TODO(honghaiz): https://bugs.chromium.org/p/webrtc/issues/detail?id=7421
+P2PTransportChannelMultihomedTest.TestContinualGatheringOnNewInterface