diff --git a/BaseTools/Source/C/LzmaCompress/Sdk/C/LzmaEnc.c b/BaseTools/Source/C/LzmaCompress/Sdk/C/LzmaEnc.c
index c6717eeea3..297db9d54d 100644
--- a/BaseTools/Source/C/LzmaCompress/Sdk/C/LzmaEnc.c
+++ b/BaseTools/Source/C/LzmaCompress/Sdk/C/LzmaEnc.c
@@ -1366,8 +1366,9 @@ static UInt32 GetOptimum(CLzmaEnc *p, UInt32 position, UInt32 *backRes)
       
       if (repIndex == 0)
         startLen = lenTest + 1;
-        
+      #ifndef _MSC_VER
       if (1 /* _maxMode */)
+      #endif
         {
           UInt32 lenTest2 = lenTest + 1;
           UInt32 limit = lenTest2 + p->numFastBytes;