diff --git a/BUILD.gn b/BUILD.gn
index f2713f62d2..4afbdc7b92 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -344,9 +344,6 @@ config("common_config") {
     if (is_clang) {
       cflags += [
         "-Wc++11-narrowing",
-        "-Wimplicit-fallthrough",
-        "-Wthread-safety",
-        "-Winconsistent-missing-override",
         "-Wundef",
       ]