diff --git a/NetworkPkg/SnpDxe/Snp.c b/NetworkPkg/SnpDxe/Snp.c
index 2b3f943f5a..f4337a9113 100644
--- a/NetworkPkg/SnpDxe/Snp.c
+++ b/NetworkPkg/SnpDxe/Snp.c
@@ -324,6 +324,8 @@ SimpleNetworkDriverStart (
 
   DEBUG ((DEBUG_NET, "\nSnpNotifyNetworkInterfaceIdentifier()  "));
 
+  Snp = NULL;
+
   Status = gBS->OpenProtocol (
                   Controller,
                   &gEfiDevicePathProtocolGuid,