diff --git a/miext/shadow/Makefile.am b/miext/shadow/Makefile.am
index a73d0ec78..30f7bda96 100644
--- a/miext/shadow/Makefile.am
+++ b/miext/shadow/Makefile.am
@@ -2,8 +2,6 @@ noinst_LTLIBRARIES = libshadow.la
 
 AM_CFLAGS = $(DIX_CFLAGS)
 
-INCLUDES = -I$(top_srcdir)/hw/xfree86/os-support
-
 if XORG
 sdk_HEADERS = shadow.h
 endif