diff --git a/Library/OcTimerLib/OcTimerLib.c b/Library/OcTimerLib/OcTimerLib.c
index 474e0fd4..c0b0852a 100755
--- a/Library/OcTimerLib/OcTimerLib.c
+++ b/Library/OcTimerLib/OcTimerLib.c
@@ -53,7 +53,7 @@ RecalculateTSC (
   //
   // Intel timer support.
   //
-  if (PciRead16 (PCI_ICH_LPC_ADDRESS (0)) == 0x8086) {
+  if (PciRead16 (PCI_ICH_LPC_ADDRESS (0)) == CPUID_VENDOR_INTEL) {
     TimerAddr       = 0;
     TimerResolution = 10;