diff --git a/ArmPkg/Library/ArmArchTimerLib/ArmArchTimerLib.c b/ArmPkg/Library/ArmArchTimerLib/ArmArchTimerLib.c
index 7c698fe471..24d9dae4e6 100644
--- a/ArmPkg/Library/ArmArchTimerLib/ArmArchTimerLib.c
+++ b/ArmPkg/Library/ArmArchTimerLib/ArmArchTimerLib.c
@@ -56,7 +56,7 @@ TimerConstructor (
       // If the security extension is not implemented, set Timer Frequency
       // here.
       //
-      if ((ArmReadIdPfr1 () & ARM_PFR1_SEC) == 0x0) {
+      if (ArmHasSecurityExtensions ()) {
         ArmGenericTimerSetTimerFreq (PcdGet32 (PcdArmArchTimerFreqInHz));
       }
 #endif