diff --git a/PCbuild/python.vcproj b/PCbuild/python.vcproj
index aa432d4..8412e81 100644
--- a/PCbuild/python.vcproj
+++ b/PCbuild/python.vcproj
@@ -137,7 +137,7 @@
 			CharacterSet="2">
 			<Tool
 				Name="VCCLCompilerTool"
-				AdditionalOptions=" /USECL:MS_ITANIUM /VSEXTCOMP_VERBOSE"
+				AdditionalOptions=" /USECL:MS_ITANIUM  /GS-"
 				Optimization="2"
 				InlineFunctionExpansion="1"
 				AdditionalIncludeDirectories="..\Include,..\PC"