diff --git a/orc-rt/include/orc-rt/SimplePackedSerialization.h b/orc-rt/include/orc-rt/SimplePackedSerialization.h
index 95e10bc437cfb..292e6a0fc23ca 100644
--- a/orc-rt/include/orc-rt/SimplePackedSerialization.h
+++ b/orc-rt/include/orc-rt/SimplePackedSerialization.h
@@ -46,6 +46,7 @@
 #include <type_traits>
 #include <unordered_map>
 #include <utility>
+#include <variant>
 #include <vector>
 
 namespace orc_rt {