diff --git a/kai_defs.bzl b/kai_defs.bzl
index c73d42a1bb4bf02f646f8f1e51ca3f416eda558c..1500e04d43a211f9b220965bdcc0ee04d245fb67 100644
--- a/kai_defs.bzl
+++ b/kai_defs.bzl
@@ -39,7 +39,6 @@ def kai_gcc_warn_conlyopts():
 def kai_gcc_warn_cxxopts():
     return [
         "-Wctor-dtor-privacy",
-        "-Weffc++",
         "-Woverloaded-virtual",
         "-Wsign-promo",
         "-Wmissing-declarations",