diff --git a/README b/README
index 1770da39..594d9631 100644
--- a/README
+++ b/README
@@ -8,7 +8,7 @@ tools to implement desktop virtual keyboards.
 ** Dependencies
 
 REQUIRED: GLib2, GTK, PangoCairo, libxklavier, libcroco
-OPTIONAL: libXtst, at-spi2-core, Clutter, Clutter-Gtk, Python, Vala, gobject-introspection
+OPTIONAL: libXtst, at-spi2-core, IBus, Clutter, Clutter-Gtk, Python, Vala, gobject-introspection
 
 ** Build from git repo