diff --git a/MdeModulePkg/MdeModulePkg.dec b/MdeModulePkg/MdeModulePkg.dec
index 5c0cf20976..414b13e23e 100644
--- a/MdeModulePkg/MdeModulePkg.dec
+++ b/MdeModulePkg/MdeModulePkg.dec
@@ -117,7 +117,7 @@
 
   ## @libraryclass  Provides authenticated variable services.
   #
-  AuthVaribleLib|Include/Library/AuthVaribleLib.h
+  AuthVariableLib|Include/Library/AuthVariableLib.h
 
 [Guids]
   ## MdeModule package token space guid