diff --git a/paddle/platform/variant.h b/paddle/platform/variant.h
index c5bc45ca724279ec1ce11a2efbe9c3273aba72d7..c2257af1b5dd1a1e284979bf17e1a947072baa85 100644
--- a/paddle/platform/variant.h
+++ b/paddle/platform/variant.h
@@ -19,9 +19,11 @@
 #ifndef PADDLE_ONLY_CPU
 
 // Because boost's variadic templates has bug on nvcc, boost will disable
-// BOOST_NO_CXX11_VARIADIC_TEMPLATES when GPU enabled on nvcc.
-// Disable BOOST_NO_CXX11_VARIADIC_TEMPLATES on gcc/clang to generate same
+// variadic template support when GPU enabled on nvcc.
+// Define BOOST_NO_CXX11_VARIADIC_TEMPLATES on gcc/clang to generate same
 // function symbols.
+//
+// https://github.com/PaddlePaddle/Paddle/issues/3386
 #ifndef BOOST_NO_CXX11_VARIADIC_TEMPLATES
 #define BOOST_NO_CXX11_VARIADIC_TEMPLATES
 #endif