diff --git a/include/nlohmann/detail/output/serializer.hpp b/include/nlohmann/detail/output/serializer.hpp
index 11f24c12f..118af5dc7 100644
--- a/include/nlohmann/detail/output/serializer.hpp
+++ b/include/nlohmann/detail/output/serializer.hpp
@@ -28,7 +28,6 @@
 #include <nlohmann/detail/input/string_scan.hpp>
 #include <nlohmann/detail/macro_scope.hpp>
 #include <nlohmann/detail/meta/cpp_future.hpp>
-#include <nlohmann/detail/output/binary_writer.hpp>
 #include <nlohmann/detail/output/output_adapters.hpp>
 #include <nlohmann/detail/recursion_depth_limit.hpp>
 #include <nlohmann/detail/string_concat.hpp>
@@ -915,9 +914,9 @@ class serializer
                                 }
                                 else
                                 {
-                                    string_buffer[bytes++] = detail::binary_writer<BasicJsonType, char>::to_char_type('\xEF');
-                                    string_buffer[bytes++] = detail::binary_writer<BasicJsonType, char>::to_char_type('\xBF');
-                                    string_buffer[bytes++] = detail::binary_writer<BasicJsonType, char>::to_char_type('\xBD');
+                                    string_buffer[bytes++] = '\xEF';
+                                    string_buffer[bytes++] = '\xBF';
+                                    string_buffer[bytes++] = '\xBD';
                                 }
 
                                 // write buffer and reset index; there must be 13 bytes
diff --git a/single_include/nlohmann/json.hpp b/single_include/nlohmann/json.hpp
index e7be6d80f..b88489a5c 100644
--- a/single_include/nlohmann/json.hpp
+++ b/single_include/nlohmann/json.hpp
@@ -24103,8 +24103,6 @@ NLOHMANN_JSON_NAMESPACE_END
 
 // #include <nlohmann/detail/meta/cpp_future.hpp>
 
-// #include <nlohmann/detail/output/binary_writer.hpp>
-
 // #include <nlohmann/detail/output/output_adapters.hpp>
 
 // #include <nlohmann/detail/recursion_depth_limit.hpp>
@@ -24996,9 +24994,9 @@ class serializer
                                 }
                                 else
                                 {
-                                    string_buffer[bytes++] = detail::binary_writer<BasicJsonType, char>::to_char_type('\xEF');
-                                    string_buffer[bytes++] = detail::binary_writer<BasicJsonType, char>::to_char_type('\xBF');
-                                    string_buffer[bytes++] = detail::binary_writer<BasicJsonType, char>::to_char_type('\xBD');
+                                    string_buffer[bytes++] = '\xEF';
+                                    string_buffer[bytes++] = '\xBF';
+                                    string_buffer[bytes++] = '\xBD';
                                 }
 
                                 // write buffer and reset index; there must be 13 bytes