diff --git a/configure.ac b/configure.ac
index ba3ab5c..8250fec 100644
--- a/configure.ac
+++ b/configure.ac
@@ -53,8 +53,6 @@ AC_ARG_WITH(xorg-module-dir,
             [moduledir=`$PKG_CONFIG --variable=moduledir xorg-server`])
 
 # Store the list of server defined optional extensions in REQUIRED_MODULES
-XORG_DRIVER_CHECK_EXT(RANDR, randrproto)
-XORG_DRIVER_CHECK_EXT(RENDER, renderproto)
 XORG_DRIVER_CHECK_EXT(XV, videoproto)
 XORG_DRIVER_CHECK_EXT(DPMSExtension, xextproto)