diff --git a/UefiCpuPkg/Library/MtrrLib/MtrrLib.c b/UefiCpuPkg/Library/MtrrLib/MtrrLib.c
index bfe02f3cb9..a5181ebd74 100644
--- a/UefiCpuPkg/Library/MtrrLib/MtrrLib.c
+++ b/UefiCpuPkg/Library/MtrrLib/MtrrLib.c
@@ -19,6 +19,7 @@
 #include <Library/CpuLib.h>
 #include <Library/BaseMemoryLib.h>
 #include <Library/DebugLib.h>
+#include <Library/PcdLib.h>
 
 #define OR_SEED              0x0101010101010101ull
 #define CLEAR_SEED           0xFFFFFFFFFFFFFFFFull