diff --git a/reactos/drivers/video/videoprt/videoprt.c b/reactos/drivers/video/videoprt/videoprt.c
index 3f6adb391b2..3dac521f9a8 100644
--- a/reactos/drivers/video/videoprt/videoprt.c
+++ b/reactos/drivers/video/videoprt/videoprt.c
@@ -411,7 +411,7 @@ IntVideoPortFindAdapter(
    {
       ULONG BusNumber, MaxBuses;
 
-      MaxBuses = DeviceExtension->AdapterInterfaceType == PCIBus ? 8 : 1;
+      MaxBuses = DeviceExtension->AdapterInterfaceType == PCIBus ? PCI_MAX_BRIDGE_NUMBER : 1;
 
       for (BusNumber = 0; BusNumber < MaxBuses; BusNumber++)
       {