diff --git a/MdePkg/MdePkg.dec b/MdePkg/MdePkg.dec
index f07e4a7ef3..51220cfe7b 100644
--- a/MdePkg/MdePkg.dec
+++ b/MdePkg/MdePkg.dec
@@ -106,6 +106,7 @@
   BaseMemoryLib|Include/Library/BaseMemoryLib.h
   BaseLib|Include/Library/BaseLib.h
   BasePeCoffLib|Include/Library/PeCoffLib.h
+  GraphicsLib|Include/Library/GraphicsLib.h
   
 [LibraryClasses.IPF]
   SalLib|Include/Library/SalLib.h