diff --git a/README.md b/README.md
index b7ea2a18..5b358bbe 100644
--- a/README.md
+++ b/README.md
@@ -26,6 +26,7 @@ Assuming you already have all the usual building tools installed (e.g. gcc, pyth
 * libXext
 * xproto
 * xcb
+* xcb-util
 * xcb-damage
 * xcb-dpms
 * xcb-xfixes