diff --git a/clients/meson.build b/clients/meson.build
index 821bc8031..bdc5d44ad 100644
--- a/clients/meson.build
+++ b/clients/meson.build
@@ -270,6 +270,8 @@ demo_clients = [
 		'add_sources': [
 			presentation_time_client_protocol_h,
 			presentation_time_protocol_c,
+			xdg_shell_client_protocol_h,
+			xdg_shell_protocol_c,
 		]
 	},
 	{ 'basename': 'resizor' },