diff --git a/MdeModulePkg/Universal/Network/IScsiDxe/IScsiMisc.c b/MdeModulePkg/Universal/Network/IScsiDxe/IScsiMisc.c
index 621fbc00e4..ebd9f5b40d 100644
--- a/MdeModulePkg/Universal/Network/IScsiDxe/IScsiMisc.c
+++ b/MdeModulePkg/Universal/Network/IScsiDxe/IScsiMisc.c
@@ -820,7 +820,7 @@ IScsiGetTcpConnDevicePath (
       //  do not exist.
       //  In new version of IPv4_DEVICE_PATH, structcure length is 27.
       //
-      if (DevicePathNodeLength (&DPathNode->Ipv4) == IPv4_NODE_LEN_NEW_VERSIONS) {  
+      if (DevicePathNodeLength (&DPathNode->Ipv4) == IP4_NODE_LEN_NEW_VERSIONS) {  
 
         IP4_COPY_ADDRESS (
           &DPathNode->Ipv4.GatewayIpAddress,
diff --git a/MdeModulePkg/Universal/Network/IScsiDxe/IScsiMisc.h b/MdeModulePkg/Universal/Network/IScsiDxe/IScsiMisc.h
index 0bb7da070d..8a95493dcd 100644
--- a/MdeModulePkg/Universal/Network/IScsiDxe/IScsiMisc.h
+++ b/MdeModulePkg/Universal/Network/IScsiDxe/IScsiMisc.h
@@ -22,7 +22,7 @@ typedef struct _ISCSI_SESSION_CONFIG_DATA ISCSI_SESSION_CONFIG_DATA;
 ///
 /// IPv4 Device Path Node Length
 ///
-#define IPv4_NODE_LEN_NEW_VERSIONS    27
+#define IP4_NODE_LEN_NEW_VERSIONS    27
 
 #pragma pack(1)
 typedef struct {