diff --git a/shell/common/switches.cc b/shell/common/switches.cc
index a2726fea343e8..e2fa0b2849430 100644
--- a/shell/common/switches.cc
+++ b/shell/common/switches.cc
@@ -62,6 +62,7 @@ static const std::string gAllowedDartFlags[] = {
     "--profile_period",
     "--random_seed",
     "--sample-buffer-duration",
+    "--trace-kernel",
     "--trace-reload",
     "--trace-reload-verbose",
     "--write-service-info",