diff --git a/MdeModulePkg/Universal/Network/IScsiDxe/IScsiMisc.c b/MdeModulePkg/Universal/Network/IScsiDxe/IScsiMisc.c
index 1683d88a9e..985f02e940 100644
--- a/MdeModulePkg/Universal/Network/IScsiDxe/IScsiMisc.c
+++ b/MdeModulePkg/Universal/Network/IScsiDxe/IScsiMisc.c
@@ -568,6 +568,8 @@ Returns:
   UINT8   Digit;
   UINT8   Byte;
 
+  Digit = 0;
+
   //
   // Find out how many hex characters the string has.
   //