diff --git a/gen/org/freedesktop/UPower/meson.build b/gen/org/freedesktop/UPower/meson.build
index 5569eff..f87d535 100644
--- a/gen/org/freedesktop/UPower/meson.build
+++ b/gen/org/freedesktop/UPower/meson.build
@@ -4,6 +4,7 @@
     'org/freedesktop/UPower/Device__markdown'.underscorify(),
     input: [ '../../../../yaml/org/freedesktop/UPower/Device.interface.yaml',  ],
     output: [ 'Device.md' ],
+    depend_files: sdbusplusplus_depfiles,
     command: [
         sdbuspp_gen_meson_prog, '--command', 'markdown',
         '--output', meson.current_build_dir(),