diff --git a/math/dgl/files/patch-third__party_tensorpipe_third__party_libnop_include_nop_types_variant.h b/math/dgl/files/patch-third__party_tensorpipe_third__party_libnop_include_nop_types_variant.h
new file mode 100644
index 000000000000..004e29c616b6
--- /dev/null
+++ b/math/dgl/files/patch-third__party_tensorpipe_third__party_libnop_include_nop_types_variant.h
@@ -0,0 +1,28 @@
+--- third_party/tensorpipe/third_party/libnop/include/nop/types/variant.h.orig	2020-07-24 02:13:02 UTC
++++ third_party/tensorpipe/third_party/libnop/include/nop/types/variant.h
+@@ -238,7 +238,7 @@ class Variant {
+   // resulting type.
+   template <typename... Args>
+   void Construct(Args&&... args) {
+-    index_ = value_.template Construct(std::forward<Args>(args)...);
++    index_ = value_.template Construct<>(std::forward<Args>(args)...);
+   }
+   void Construct(EmptyVariant) {}
+ 
+@@ -255,14 +255,14 @@ class Variant {
+   // multiple element types.
+   template <typename T, typename U>
+   void Assign(TypeTag<T>, U&& value) {
+-    if (!value_.template Assign(TypeTag<T>{}, index_, std::forward<U>(value))) {
++    if (!value_.template Assign<>(TypeTag<T>{}, index_, std::forward<U>(value))) {
+       Destruct();
+       Construct(TypeTag<T>{}, std::forward<U>(value));
+     }
+   }
+   template <typename T>
+   void Assign(T&& value) {
+-    if (!value_.template Assign(index_, std::forward<T>(value))) {
++    if (!value_.template Assign<>(index_, std::forward<T>(value))) {
+       Destruct();
+       Construct(std::forward<T>(value));
+     }