diff --git a/hw/xfree86/common/xf86.h b/hw/xfree86/common/xf86.h
index 2eb0442e0..3158d1486 100644
--- a/hw/xfree86/common/xf86.h
+++ b/hw/xfree86/common/xf86.h
@@ -74,8 +74,6 @@ extern _X_EXPORT int xf86ClaimPciSlot(struct pci_device *, DriverPtr drvp,
 extern _X_EXPORT void xf86UnclaimPciSlot(struct pci_device *, GDevPtr dev);
 extern _X_EXPORT Bool xf86ParsePciBusString(const char *busID, int *bus,
                                             int *device, int *func);
-extern _X_EXPORT Bool xf86ComparePciBusString(const char *busID, int bus,
-                                              int device, int func);
 extern _X_EXPORT Bool xf86IsPrimaryPci(struct pci_device *pPci);
 extern _X_EXPORT Bool xf86CheckPciMemBase(struct pci_device *pPci,
                                           memType base);
diff --git a/hw/xfree86/common/xf86Bus.h b/hw/xfree86/common/xf86Bus.h
index 9287a1834..8c1d940ec 100644
--- a/hw/xfree86/common/xf86Bus.h
+++ b/hw/xfree86/common/xf86Bus.h
@@ -72,4 +72,6 @@ extern Bool sbusSlotClaimed;
 extern int platformSlotClaimed;
 extern int pciSlotClaimed;
 
+Bool xf86ComparePciBusString(const char *busID, int bus, int device, int func);
+
 #endif                          /* _XF86_BUS_H */