diff --git a/hw/xfree86/os-support/bus/Makefile.am b/hw/xfree86/os-support/bus/Makefile.am
index 868046664..f3bfb2d3f 100644
--- a/hw/xfree86/os-support/bus/Makefile.am
+++ b/hw/xfree86/os-support/bus/Makefile.am
@@ -32,5 +32,6 @@ EXTRA_DIST = \
 	altixPCI.h \
 	e8870PCI.h \
 	zx1PCI.h \
+	xf86Sbus.h \
         $(PCIDISTSOURCES)