diff --git a/include/xrpl/basics/Number.h b/include/xrpl/basics/Number.h
index e3be0fc0ae..28c7b1dbda 100644
--- a/include/xrpl/basics/Number.h
+++ b/include/xrpl/basics/Number.h
@@ -14,7 +14,6 @@
 #include <stdexcept>
 #include <string>
 #include <type_traits>
-#include <unordered_map>
 #include <utility>
 
 namespace xrpl {