diff --git a/INSTALL.md b/INSTALL.md
index dc5ee325..ba378288 100644
--- a/INSTALL.md
+++ b/INSTALL.md
@@ -23,6 +23,7 @@
 * libxkbcommon
 * libxkbcommon-x11
 * libxcb (sometimes split, you need libxcb, libxcb-xkb and libxcb-xinerama)
+* libx11-xcb
 * xcb-util
 * xcb-util-wm (sometimes split as libxcb-ewmh and libxcb-icccm)