diff --git a/cpp/include/cudf/io/text/multibyte_split.hpp b/cpp/include/cudf/io/text/multibyte_split.hpp
index 25f7ef98a81..77affa95ca8 100644
--- a/cpp/include/cudf/io/text/multibyte_split.hpp
+++ b/cpp/include/cudf/io/text/multibyte_split.hpp
@@ -23,6 +23,7 @@
 #include <rmm/mr/device/device_memory_resource.hpp>
 
 #include <memory>
+#include <optional>
 
 namespace cudf {
 namespace io {
diff --git a/cpp/src/io/text/multibyte_split.cu b/cpp/src/io/text/multibyte_split.cu
index 99f3bde3bf6..51622747831 100644
--- a/cpp/src/io/text/multibyte_split.cu
+++ b/cpp/src/io/text/multibyte_split.cu
@@ -40,6 +40,7 @@
 #include <cub/block/block_scan.cuh>
 
 #include <memory>
+#include <optional>
 
 namespace {