diff --git a/PcAtChipsetPkg/PcatRealTimeClockRuntimeDxe/PcRtcEntry.c b/PcAtChipsetPkg/PcatRealTimeClockRuntimeDxe/PcRtcEntry.c
index b600df487952..ca0cad9b0198 100644
--- a/PcAtChipsetPkg/PcatRealTimeClockRuntimeDxe/PcRtcEntry.c
+++ b/PcAtChipsetPkg/PcatRealTimeClockRuntimeDxe/PcRtcEntry.c
@@ -122,9 +122,10 @@ PcRtcEfiSetWakeupTime (
   @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
   )
@@ -220,7 +221,7 @@ InitializePcRtc (
     Status = gBS->CreateEventEx (
                     EVT_NOTIFY_SIGNAL,
                     TPL_NOTIFY,
-                    LibRtcVirtualNotifyEvent,
+                    VirtualNotifyEvent,
                     NULL,
                     &gEfiEventVirtualAddressChangeGuid,
                     &mVirtualAddrChangeEvent