diff --git a/MdePkg/ChangeLog.txt b/MdePkg/ChangeLog.txt
index e9f649249f..6a00b54213 100644
--- a/MdePkg/ChangeLog.txt
+++ b/MdePkg/ChangeLog.txt
@@ -154,7 +154,7 @@ EDK_5869:  Non-Compatible: qhuang8
 			Modules using this macro, it needs to adapt to new interface.
 			
 EDK_5939:  Non-Compatible: qwang12
-  Library API moved frrom HiiLib to UefiLib.
+  Library API moved from HiiLib to UefiLib.
   
 		Code Change:
 			Change HiiLibGetCurrentLanguage to GetCurrentLanguage and moved it from HiiLib to UefiLib.
diff --git a/MdePkg/MdePkg.dec b/MdePkg/MdePkg.dec
index ff9b794a33..8c4ccb33e4 100644
--- a/MdePkg/MdePkg.dec
+++ b/MdePkg/MdePkg.dec
@@ -3,7 +3,7 @@
 # This Package provides all definitions(including functions, MACROs, structures and library classes)
 # and libraries instances, which are defined in MDE Specification.
 # It also provides the definitions(including PPIs/PROTOCOLs/GUIDs) of 
-# EFI1.10/UEFI2.0/UEFI2.1/PI1.0 and some Industry Stancards.
+# EFI1.10/UEFI2.0/UEFI2.1/PI1.0 and some Industry Standards.
 #
 # Copyright (c) 2007 - 2008, Intel Corporation.
 #