diff --git a/PcAtChipsetPkg/PciHostBridgeDxe/PciHostBridge.c b/PcAtChipsetPkg/PciHostBridgeDxe/PciHostBridge.c
index 6403a0723c..a6c1d130ab 100644
--- a/PcAtChipsetPkg/PciHostBridgeDxe/PciHostBridge.c
+++ b/PcAtChipsetPkg/PciHostBridgeDxe/PciHostBridge.c
@@ -1180,7 +1180,7 @@ PreprocessController (
     return EFI_INVALID_PARAMETER;
   }
 
-  if (Phase < EfiPciBeforeChildBusEnumeration || Phase > EfiMaxPciHostBridgeEnumerationPhase) {
+  if (Phase < EfiPciBeforeChildBusEnumeration || Phase > EfiPciBeforeResourceCollection) {
     return EFI_INVALID_PARAMETER;
   }