diff --git a/include/cuco/detail/trie/dynamic_bitset/dynamic_bitset.cuh b/include/cuco/detail/trie/dynamic_bitset/dynamic_bitset.cuh
index 402f9af3e..abdad2719 100644
--- a/include/cuco/detail/trie/dynamic_bitset/dynamic_bitset.cuh
+++ b/include/cuco/detail/trie/dynamic_bitset/dynamic_bitset.cuh
@@ -24,6 +24,7 @@
 #include <thrust/device_vector.h>
 
 #include <climits>
+#include <cstddef>
 
 namespace cuco {
 namespace experimental {