diff --git a/configure.ac b/configure.ac
index 06b0575..b892d1f 100644
--- a/configure.ac
+++ b/configure.ac
@@ -57,7 +57,7 @@ XORG_DRIVER_CHECK_EXT(RANDR, randrproto)
 XORG_DRIVER_CHECK_EXT(RENDER, renderproto)
 
 # Obtain compiler/linker options for the driver dependencies
-PKG_CHECK_MODULES(XORG, [xorg-server >= 1.0.99.901 xproto fontsproto $REQUIRED_MODULES])
+PKG_CHECK_MODULES(XORG, [xorg-server >= 1.18 xproto fontsproto $REQUIRED_MODULES])
 
 # Checks for libraries.