diff --git a/handler/BUILD.gn b/handler/BUILD.gn
index c817393b..b3370fca 100644
--- a/handler/BUILD.gn
+++ b/handler/BUILD.gn
@@ -241,6 +241,8 @@ if (crashpad_is_win) {
       "win/crashy_signal.cc",
     ]
 
+    cflags = [ "/wd4702" ]  # Unreachable code.
+
     deps = [
       "../client",
       "../third_party/mini_chromium:base",
diff --git a/util/BUILD.gn b/util/BUILD.gn
index 3bf59081..bb3a9e48 100644
--- a/util/BUILD.gn
+++ b/util/BUILD.gn
@@ -430,6 +430,8 @@ static_library("util") {
       "winhttp.lib",
     ]
 
+    cflags = [ "/wd4201" ]  # nonstandard extension used: nameless struct/union.
+
     if (current_cpu == "x86") {
       asmflags = [ "/safeseh" ]
     }