diff --git a/Makefile.am b/Makefile.am
index 530a000d..42f0b8d9 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -641,4 +641,5 @@ EXTRA_DIST += \
 	subprojects/libnkutils/meson_options.txt \
 	subprojects/libgwater/xcb/meson.build \
 	meson_options.txt \
+  subprojects/xcb \
 	meson.build