diff --git a/ext/zlib/zlib.vcxproj b/ext/zlib/zlib.vcxproj
index 34232043d4..849dd3289f 100644
--- a/ext/zlib/zlib.vcxproj
+++ b/ext/zlib/zlib.vcxproj
@@ -141,7 +141,7 @@
       <Optimization>MaxSpeed</Optimization>
       <FunctionLevelLinking>true</FunctionLevelLinking>
       <IntrinsicFunctions>true</IntrinsicFunctions>
-      <PreprocessorDefinitions>WIN32;NDEBUG;_LIB;%(PreprocessorDefinitions);_CRT_SECURE_NO_WARNINGS</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WIN32;NDEBUG;_LIB;%(PreprocessorDefinitions);_CRT_SECURE_NO_WARNINGS;_CRT_NONSTDC_NO_DEPRECATE</PreprocessorDefinitions>
       <EnableEnhancedInstructionSet>StreamingSIMDExtensions2</EnableEnhancedInstructionSet>
       <BufferSecurityCheck>false</BufferSecurityCheck>
       <FloatingPointModel>Fast</FloatingPointModel>