diff --git a/src/add-ons/kernel/bus_managers/pci/arch/ppc/pci_config.c b/src/add-ons/kernel/bus_managers/pci/arch/ppc/pci_config.c
index 0b7ecfad68..03ab869683 100644
--- a/src/add-ons/kernel/bus_managers/pci/arch/ppc/pci_config.c
+++ b/src/add-ons/kernel/bus_managers/pci/arch/ppc/pci_config.c
@@ -1,5 +1,7 @@
 #include "pci_priv.h"
 
+int	gMaxBusDevices;
+
 status_t
 pci_config_init()
 {