diff --git a/hw/xfree86/os-support/bus/Makefile.am b/hw/xfree86/os-support/bus/Makefile.am
index 92a519bcc..106b237ff 100644
--- a/hw/xfree86/os-support/bus/Makefile.am
+++ b/hw/xfree86/os-support/bus/Makefile.am
@@ -16,8 +16,7 @@ PLATFORM_SOURCES = Sbus.c
 sdk_HEADERS += xf86Sbus.h
 endif
 
-libbus_la_SOURCES = Pci.c Pci.h $(PCI_SOURCES) $(PLATFORM_PCI_SOURCES) \
-                    $(PLATFORM_SOURCES)
+libbus_la_SOURCES = Pci.c Pci.h $(PCI_SOURCES) $(PLATFORM_SOURCES)
 
 INCLUDES = $(XORG_INCS)