diff --git a/include/boost/redis/adapter/detail/adapters.hpp b/include/boost/redis/adapter/detail/adapters.hpp
index 5d731498..141c09d6 100644
--- a/include/boost/redis/adapter/detail/adapters.hpp
+++ b/include/boost/redis/adapter/detail/adapters.hpp
@@ -29,7 +29,6 @@
 #include <charconv>
 
 // See https://stackoverflow.com/a/31658120/1077832
-#include<ciso646>
 #ifdef _LIBCPP_VERSION
 #else
 #include <cstdlib>