diff --git a/Nt32Pkg/Sec/SecMain.inf b/Nt32Pkg/Sec/SecMain.inf
index 91d88902f9..0b0636295e 100644
--- a/Nt32Pkg/Sec/SecMain.inf
+++ b/Nt32Pkg/Sec/SecMain.inf
@@ -68,5 +68,5 @@
   
 [BuildOptions.common]
   MSFT:*_*_IA32_DLINK_FLAGS = /out:"$(BIN_DIR)\SecMain.exe" /base:0x10000000 /pdb:"$(BIN_DIR)\SecMain.pdb" /LIBPATH:"$(VCINSTALLDIR)\Lib" /LIBPATH:"$(VCINSTALLDIR)\PlatformSdk\Lib" /NOLOGO /SUBSYSTEM:CONSOLE /NODEFAULTLIB /IGNORE:4086 /MAP /OPT:REF /DEBUG /MACHINE:I386 /LTCG Kernel32.lib MSVCRTD.lib Gdi32.lib User32.lib Winmm.lib
-  MSFT:*_*_IA32_CC_FLAGS = /nologo /W4 /WX /Gy /c /D UNICODE /Od /FI$(DEST_DIR_DEBUG)/AutoGen.h /EHs-c- /GF /Gs8192 /Zi /Gm
+  MSFT:*_*_IA32_CC_FLAGS = /nologo /W4 /WX /Gy /c /D UNICODE /Od /FI$(DEST_DIR_DEBUG)/AutoGen.h /EHs-c- /GF /Gs8192 /Zi /Gm /D_CRT_SECURE_NO_WARNINGS