diff --git a/include/eosio/vm/allocator.hpp b/include/eosio/vm/allocator.hpp
index c267ea7..1943990 100644
--- a/include/eosio/vm/allocator.hpp
+++ b/include/eosio/vm/allocator.hpp
@@ -9,6 +9,7 @@
 #include <cstring>
 #include <map>
 #include <set>
+#include <span>
 #include <memory>
 #include <mutex>
 #include <utility>