diff --git a/src/third_party/asio-master/asio/include/asio/detail/config.hpp b/src/third_party/asio-master/asio/include/asio/detail/config.hpp
index 7fe6a95a..ff4cc56b 100644
--- a/src/third_party/asio-master/asio/include/asio/detail/config.hpp
+++ b/src/third_party/asio-master/asio/include/asio/detail/config.hpp
@@ -786,7 +786,6 @@
 #   if (__cplusplus >= 201402)
 #    if __has_include(<experimental/string_view>)
 #     define ASIO_HAS_STD_STRING_VIEW 1
-#     define ASIO_HAS_STD_EXPERIMENTAL_STRING_VIEW 1
 #    endif // __has_include(<experimental/string_view>)
 #   endif // (__cplusplus >= 201402)
 #  endif // defined(__clang__)
@@ -794,7 +793,6 @@
 #   if ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 9)) || (__GNUC__ > 4)
 #    if (__cplusplus >= 201402)
 #     define ASIO_HAS_STD_STRING_VIEW 1
-#     define ASIO_HAS_STD_EXPERIMENTAL_STRING_VIEW 1
 #    endif // (__cplusplus >= 201402)
 #   endif // ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 7)) || (__GNUC__ > 4)
 #  endif // defined(__GNUC__)