diff --git a/tensorflow/core/kernels/data/experimental/snapshot_dataset_op.cc b/tensorflow/core/kernels/data/experimental/snapshot_dataset_op.cc
--- a/tensorflow/core/kernels/data/experimental/snapshot_dataset_op.cc
+++ b/tensorflow/core/kernels/data/experimental/snapshot_dataset_op.cc
@@ -72,6 +72,8 @@
     SnapshotDatasetV2Op::kReaderFuncTarguments;
 /* static */ constexpr const char* const
     SnapshotDatasetV2Op::kShardFuncTarguments;
+/* static */ constexpr const char* const SnapshotDatasetV2Op::kReaderPrefix;
+/* static */ constexpr const char* const SnapshotDatasetV2Op::kWriterPrefix;
 /* static */ constexpr const int SnapshotDatasetV2Op::kFileFormatVersion;

 // ==== Snapshot Implementation ====

diff --git a/tensorflow/core/kernels/data/experimental/data_service_dataset_op.cc b/tensorflow/core/kernels/data/experimental/data_service_dataset_op.cc
--- a/tensorflow/core/kernels/data/experimental/data_service_dataset_op.cc
+++ b/tensorflow/core/kernels/data/experimental/data_service_dataset_op.cc
@@ -53,6 +53,8 @@
 /* static */ constexpr const char* const
     DataServiceDatasetOp::kMaxOutstandingRequests;
 /* static */ constexpr const char* const
+    DataServiceDatasetOp::kTaskRefreshIntervalHintMs;
+/* static */ constexpr const char* const
     DataServiceDatasetOp::kIterationCounter;
 /* static */ constexpr const char* const DataServiceDatasetOp::kOutputTypes;
 /* static */ constexpr const char* const DataServiceDatasetOp::kOutputShapes;