diff --git a/MdePkg/Include/Pi/PiFirmwareVolume.h b/MdePkg/Include/Pi/PiFirmwareVolume.h
index 22905894a4..a3488fa8aa 100644
--- a/MdePkg/Include/Pi/PiFirmwareVolume.h
+++ b/MdePkg/Include/Pi/PiFirmwareVolume.h
@@ -11,7 +11,7 @@
   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
 
   @par Revision Reference:
-  PI Version 1.2B
+  PI Version 1.2C
 
 **/
 
@@ -73,7 +73,7 @@ typedef UINT32  EFI_FVB_ATTRIBUTES_2;
 #define EFI_FVB2_ALIGNMENT_64K      0x00100000
 #define EFI_FVB2_ALIGNMENT_128K     0x00110000
 #define EFI_FVB2_ALIGNMENT_256K     0x00120000
-#define EFI_FVB2_ALIGNMNET_512K     0x00130000
+#define EFI_FVB2_ALIGNMENT_512K     0x00130000
 #define EFI_FVB2_ALIGNMENT_1M       0x00140000
 #define EFI_FVB2_ALIGNMENT_2M       0x00150000
 #define EFI_FVB2_ALIGNMENT_4M       0x00160000