diff --git a/meson.build b/meson.build
index 529b9cb..778ca84 100644
--- a/meson.build
+++ b/meson.build
@@ -251,7 +251,8 @@
 '-DBOOST_NO_TYPEID',
 '-DBOOST_COROUTINES_NO_DEPRECATION_WARNING',
 '-DBOOST_URL_STANDALONE',
-'-DBOOST_URL_HEADER_ONLY'
+'-DBOOST_URL_HEADER_ONLY',
+'-DBOOST_ALLOW_DEPRECATED_HEADERS'
 ]),
 language : 'cpp')