diff --git a/desmume/src/frontend/posix/gtk/meson.build b/desmume/src/frontend/posix/gtk/meson.build
index 389952192..d1bdd9f4d 100644
--- a/desmume/src/frontend/posix/gtk/meson.build
+++ b/desmume/src/frontend/posix/gtk/meson.build
@@ -31,6 +31,7 @@ executable('desmume',
   dependencies: gtk_dependencies,
   include_directories: includes,
   link_with: libdesmume,
+  cpp_args: ['-DGTK_DISABLE_DEPRECATED'],
   install: true,
 )