diff --git a/machine_name.hpp b/machine_name.hpp
index 4c8a60c..13baadd 100644
--- a/machine_name.hpp
+++ b/machine_name.hpp
@@ -19,7 +19,7 @@
 #include <ipmid/api.h>
 
 #include <ipmid/api-types.hpp>
-#include <vector>
+#include <span>
 
 namespace google
 {
@@ -32,8 +32,7 @@
 } __attribute__((packed));
 
 // Handle the machine name command.
-Resp getMachineName(const std::vector<std::uint8_t>& data,
-                    HandlerInterface* handler);
+Resp getMachineName(std::span<const uint8_t> data, HandlerInterface* handler);
 
 } // namespace ipmi
 } // namespace google