diff --git a/configure.ac b/configure.ac
index a80045801..a406358ae 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1907,7 +1907,6 @@ hw/xfree86/os-support/linux/Makefile
 hw/xfree86/os-support/sco/Makefile
 hw/xfree86/os-support/solaris/Makefile
 hw/xfree86/os-support/sysv/Makefile
-hw/xfree86/os-support/usl/Makefile
 hw/xfree86/parser/Makefile
 hw/xfree86/ramdac/Makefile
 hw/xfree86/shadowfb/Makefile