diff --git a/ArmPlatformPkg/Library/PL031RealTimeClockLib/PL031RealTimeClockLib.c b/ArmPlatformPkg/Library/PL031RealTimeClockLib/PL031RealTimeClockLib.c
index ec7feaeedc..9e852696d2 100644
--- a/ArmPlatformPkg/Library/PL031RealTimeClockLib/PL031RealTimeClockLib.c
+++ b/ArmPlatformPkg/Library/PL031RealTimeClockLib/PL031RealTimeClockLib.c
@@ -274,9 +274,10 @@ LibSetWakeupTime (
   @param[in]    Event   The Event that is being processed
   @param[in]    Context Event Context
 **/
+STATIC
 VOID
 EFIAPI
-LibRtcVirtualNotifyEvent (
+VirtualNotifyEvent (
   IN EFI_EVENT  Event,
   IN VOID       *Context
   )
@@ -346,7 +347,7 @@ LibRtcInitialize (
   Status = gBS->CreateEventEx (
                   EVT_NOTIFY_SIGNAL,
                   TPL_NOTIFY,
-                  LibRtcVirtualNotifyEvent,
+                  VirtualNotifyEvent,
                   NULL,
                   &gEfiEventVirtualAddressChangeGuid,
                   &mRtcVirtualAddrChangeEvent