diff --git a/MdeModulePkg/Universal/PcatRealTimeClockRuntimeDxe/PcRtc.h b/MdeModulePkg/Universal/PcatRealTimeClockRuntimeDxe/PcRtc.h
index b0c526ff67..6cb915886d 100644
--- a/MdeModulePkg/Universal/PcatRealTimeClockRuntimeDxe/PcRtc.h
+++ b/MdeModulePkg/Universal/PcatRealTimeClockRuntimeDxe/PcRtc.h
@@ -32,6 +32,7 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
 #include <Library/UefiBootServicesTableLib.h>
 #include <Library/UefiRuntimeLib.h>
 #include <Library/UefiRuntimeServicesTableLib.h>
+#include <Library/PcdLib.h>
 
 
 typedef struct {
diff --git a/MdeModulePkg/Universal/PcatRealTimeClockRuntimeDxe/PcatRealTimeClockRuntimeDxe.inf b/MdeModulePkg/Universal/PcatRealTimeClockRuntimeDxe/PcatRealTimeClockRuntimeDxe.inf
index ef5451a602..c10a56f406 100644
--- a/MdeModulePkg/Universal/PcatRealTimeClockRuntimeDxe/PcatRealTimeClockRuntimeDxe.inf
+++ b/MdeModulePkg/Universal/PcatRealTimeClockRuntimeDxe/PcatRealTimeClockRuntimeDxe.inf
@@ -53,6 +53,7 @@
   UefiLib
   DebugLib
   BaseLib
+  PcdLib
 
 [Guids]
   gEfiGenericPlatformVariableGuid               # ALWAYS_CONSUMED