diff --git a/ubi/meson.build b/ubi/meson.build
new file mode 100644
index 0000000..5045dee
--- /dev/null
+++ b/ubi/meson.build
@@ -0,0 +1,4 @@
+image_updater_sources += files(
+    'flash.cpp',
+    'item_updater_helper.cpp'
+)