diff --git a/meson.build b/meson.build
index 05e5e2e..46d6e03 100644
--- a/meson.build
+++ b/meson.build
@@ -41,6 +41,10 @@
   add_project_arguments('-DNDEBUG', language : 'cpp')
 endif
 
+if(get_option('dns-resolver') == 'systemd-dbus')
+  add_project_arguments('-DBMCWEB_DBUS_DNS_RESOLVER', language : 'cpp')
+endif
+
 # Disable lto when compiling with no optimization
 if(get_option('optimization') == '0')
   add_project_arguments('-fno-lto', language: 'cpp')