diff --git a/vs-project/bspguy.vcxproj b/vs-project/bspguy.vcxproj
index a4f31982..7db7c50a 100644
--- a/vs-project/bspguy.vcxproj
+++ b/vs-project/bspguy.vcxproj
@@ -88,7 +88,7 @@
       <RuntimeTypeInfo>true</RuntimeTypeInfo>
       <UseFullPaths>false</UseFullPaths>
       <WarningLevel>Level4</WarningLevel>
-      <PreprocessorDefinitions>%(PreprocessorDefinitions);WIN32;_WINDOWS;GLEW_STATIC;NOMINMAX</PreprocessorDefinitions>
+      <PreprocessorDefinitions>%(PreprocessorDefinitions);WIN32;_WINDOWS;GLEW_STATIC;NOMINMAX;_CRT_SECURE_NO_WARNINGS</PreprocessorDefinitions>
       <ObjectFileName>$(IntDir)</ObjectFileName>
       <LanguageStandard>stdcpplatest</LanguageStandard>
       <EnableFiberSafeOptimizations>true</EnableFiberSafeOptimizations>