diff --git a/meson.build b/meson.build
index 91f50fb..ba98fd5 100644
--- a/meson.build
+++ b/meson.build
@@ -22,7 +22,7 @@ project_target = executable(
   meson.project_name(),
   project_source_files, install : true,
   dependencies: project_dependencies,
-  c_args : build_args,
+  cpp_args : build_args,
 )
 
 test('mcopy', project_target)