diff --git a/configure.ac b/configure.ac
index 456b8b5c9..a20237c0f 100644
--- a/configure.ac
+++ b/configure.ac
@@ -515,7 +515,7 @@ XEXT_LIB='$(top_builddir)/Xext/libXext.la'
 XEXTXORG_LIB='$(top_builddir)/Xext/libXextbuiltin.la'
 
 dnl Core modules for most extensions, et al.
-REQUIRED_MODULES="randrproto renderproto [fixesproto >= 4.0] damageproto xcmiscproto xextproto xproto xtrans [scrnsaverproto >= 1.1] bigreqsproto resourceproto fontsproto [inputproto >= 1.4]"
+REQUIRED_MODULES="randrproto renderproto [fixesproto >= 4.0] damageproto xcmiscproto xextproto xproto xtrans [scrnsaverproto >= 1.1] bigreqsproto resourceproto fontsproto [inputproto >= 1.4] [kbproto >= 1.0.3]"
 REQUIRED_LIBS="xfont xau fontenc"
 
 if test "x$DBUS" = xauto; then