diff --git a/MdeModulePkg/MdeModulePkg.dec b/MdeModulePkg/MdeModulePkg.dec
index 2be77022c9..e5c32d15ed 100644
--- a/MdeModulePkg/MdeModulePkg.dec
+++ b/MdeModulePkg/MdeModulePkg.dec
@@ -1594,9 +1594,9 @@
   # @Prompt EMU variable NV mode enable.
   gEfiMdeModulePkgTokenSpaceGuid.PcdEmuVariableNvModeEnable|FALSE|BOOLEAN|0x01100001
 
-  ## This PCD defines a reserved memory range for EMU variable NV storage.
-  #  The range is valid if non-zero. The memory range size must be PcdVariableStoreSize.
-  # @Prompt Reserved memory range for EMU variable NV storage.
+  ## This PCD defines the base address of reserved memory range for EMU variable NV storage.
+  #  A non-ZERO value indicates a valid range reserved with size given by PcdVariableStoreSize.
+  # @Prompt Base of reserved memory range for EMU variable NV storage.
   gEfiMdeModulePkgTokenSpaceGuid.PcdEmuVariableNvStoreReserved|0|UINT64|0x40000008
 
   ## This PCD defines the times to print hello world string.
diff --git a/MdeModulePkg/MdeModulePkg.uni b/MdeModulePkg/MdeModulePkg.uni
index 2f437d78eb..787fdf2282 100644
--- a/MdeModulePkg/MdeModulePkg.uni
+++ b/MdeModulePkg/MdeModulePkg.uni
@@ -397,9 +397,9 @@
                                                                                   "TRUE  - An EMU variable NV storage will be allocated or reserved for NV variables.<BR>"
                                                                                   "FALSE - No EMU variable NV storage will be allocated or reserved for NV variables.<BR>"
 
-#string STR_gEfiMdeModulePkgTokenSpaceGuid_PcdEmuVariableNvStoreReserved_PROMPT  #language en-US "Reserved memory range for EMU variable NV storage"
+#string STR_gEfiMdeModulePkgTokenSpaceGuid_PcdEmuVariableNvStoreReserved_PROMPT  #language en-US "Base of reserved memory range for EMU variable NV storage"
 
-#string STR_gEfiMdeModulePkgTokenSpaceGuid_PcdEmuVariableNvStoreReserved_HELP  #language en-US "This PCD defines a reserved memory range for EMU variable NV storage. The range is valid if non-zero. The memory range size must be PcdVariableStoreSize."
+#string STR_gEfiMdeModulePkgTokenSpaceGuid_PcdEmuVariableNvStoreReserved_HELP  #language en-US "This PCD defines the base address of reserved memory range for EMU variable NV storage. A non-ZERO value indicates a valid range reserved with size given by PcdVariableStoreSize."
 
 #string STR_gEfiMdeModulePkgTokenSpaceGuid_PcdHelloWorldPrintTimes_PROMPT  #language en-US "HelloWorld print times"