diff --git a/xla/python/ifrt/mock.h b/xla/python/ifrt/mock.h
index 77209214543d1..125c95e58a3fb 100644
--- a/xla/python/ifrt/mock.h
+++ b/xla/python/ifrt/mock.h
@@ -324,6 +324,11 @@ class MockSharding : public llvm::RTTIExtends<MockSharding, Sharding> {
             BasicDeviceList::Create({}), MemoryKind(),
             /*is_fully_replicated=*/false) {}
 
+  MockSharding(tsl::RCReference<DeviceList> devices, MemoryKind memory_kind,
+               bool is_fully_replicated)
+      : llvm::RTTIExtends<MockSharding, Sharding>(devices, memory_kind,
+                                                  is_fully_replicated) {}
+
   MOCK_METHOD(
       (absl::StatusOr<
           std::vector<std::pair<Shape, std::shared_ptr<const Sharding>>>>),