diff --git a/libcxx/test/libcxx/mangled_names.pass.cpp b/libcxx/test/libcxx/mangled_names.pass.cpp
index 210c40809781e..6ea8465d870c8 100644
--- a/libcxx/test/libcxx/mangled_names.pass.cpp
+++ b/libcxx/test/libcxx/mangled_names.pass.cpp
@@ -15,11 +15,12 @@
 
 #include <cassert>
 #include <charconv>
-#include <iostream>
+#include <cstddef>
 #include <map>
 #include <typeinfo>
 #include <string>
-#include <string_view>
+#include <system_error>
+#include <utility>
 
 template <class>
 struct mangling {};