diff --git a/MdeModulePkg/Application/HelloWorld/HelloWorld.inf b/MdeModulePkg/Application/HelloWorld/HelloWorld.inf
index 6ce0bbb5e5..00a8e63ac4 100644
--- a/MdeModulePkg/Application/HelloWorld/HelloWorld.inf
+++ b/MdeModulePkg/Application/HelloWorld/HelloWorld.inf
@@ -4,7 +4,7 @@
 #  This is a sample shell application that will print "UEFI Hello World!" to the 
 #  UEFI Console based on PCD setting.
 #
-#  It demo how to use EDKII PCD mechnism to make code more flexible.
+#  It demos how to use EDKII PCD mechanism to make code more flexible.
 #
 #  Copyright (c) 2008, Intel Corporation.
 #