diff --git a/configure.ac b/configure.ac
index fe407d7..c1e826f 100644
--- a/configure.ac
+++ b/configure.ac
@@ -57,7 +57,7 @@ XORG_DRIVER_CHECK_EXT(RENDER, renderproto)
 XORG_DRIVER_CHECK_EXT(DPMSExtension, xextproto)
 
 # Obtain compiler/linker options for the driver dependencies
-PKG_CHECK_MODULES(XORG, [xorg-server >= 1.0.99.901 xproto fontsproto xf86dgaproto $REQUIRED_MODULES])
+PKG_CHECK_MODULES(XORG, [xorg-server >= 1.18 xproto fontsproto xf86dgaproto $REQUIRED_MODULES])
 PKG_CHECK_MODULES(XEXT, [xextproto >= 7.0.99.1],
                   HAVE_XEXTPROTO_71="yes"; AC_DEFINE(HAVE_XEXTPROTO_71, 1, [xextproto 7.1 available]),
                   HAVE_XEXTPROTO_71="no")