diff --git a/hw/xfree86/common/xf86.h b/hw/xfree86/common/xf86.h
index c6a83450c..436400717 100644
--- a/hw/xfree86/common/xf86.h
+++ b/hw/xfree86/common/xf86.h
@@ -59,10 +59,6 @@ extern _X_EXPORT DevPrivateKeyRec xf86ScreenKeyRec;
 extern _X_EXPORT ScrnInfoPtr *xf86Screens;      /* List of pointers to ScrnInfoRecs */
 extern _X_EXPORT const unsigned char byte_reversed[256];
 
-#if defined(XSERVER_PLATFORM_BUS)
-extern _X_EXPORT int platformSlotClaimed;
-#endif
-
 #define XF86SCRNINFO(p) xf86ScreenToScrn(p)
 
 /* Compatibility functions for pre-input-thread drivers */
diff --git a/hw/xfree86/common/xf86Bus.h b/hw/xfree86/common/xf86Bus.h
index 0ef24217f..0cc1219b8 100644
--- a/hw/xfree86/common/xf86Bus.h
+++ b/hw/xfree86/common/xf86Bus.h
@@ -69,5 +69,6 @@ BusType StringToBusType(const char *busID, const char **retID);
 
 extern Bool fbSlotClaimed;
 extern Bool sbusSlotClaimed;
+extern int platformSlotClaimed;
 
 #endif                          /* _XF86_BUS_H */