diff --git a/PCbuild9/pyproject.vsprops b/PCbuild9/pyproject.vsprops
index 2e5c0f0..16cbf10 100644
--- a/PCbuild9/pyproject.vsprops
+++ b/PCbuild9/pyproject.vsprops
@@ -12,7 +12,7 @@
 		InlineFunctionExpansion="1"
 		EnableIntrinsicFunctions="true"
 		AdditionalIncludeDirectories="..\Include; ..\PC"
-		PreprocessorDefinitions="_CRT_SECURE_NO_DEPRECATE;_WIN32"
+		PreprocessorDefinitions="_CRT_SECURE_NO_DEPRECATE;_CRT_NONSTDC_NO_DEPRECATE;_WIN32"
 		StringPooling="true"
 		ExceptionHandling="0"
 		RuntimeLibrary="0"