diff --git a/src/dynarmic/src/dynarmic/backend/x64/xbyak.h b/src/dynarmic/src/dynarmic/backend/x64/xbyak.h
index e9573142a2..3efc51f54f 100644
--- a/src/dynarmic/src/dynarmic/backend/x64/xbyak.h
+++ b/src/dynarmic/src/dynarmic/backend/x64/xbyak.h
@@ -5,10 +5,10 @@
 
 #define XBYAK_STD_UNORDERED_SET ankerl::unordered_dense::set
 #define XBYAK_STD_UNORDERED_MAP ankerl::unordered_dense::map
-#define XBYAK_STD_UNORDERED_MULTIMAP std::unordered_multimap
+#define XBYAK_STD_UNORDERED_MULTIMAP boost::unordered_multimap
 
+#include <boost/unordered_map.hpp>
 #include <ankerl/unordered_dense.h>
-#include <unordered_map>
 
 #include <xbyak/xbyak.h>
 #include <xbyak/xbyak_util.h>