diff --git a/llvm.proj b/llvm.proj
index f79a51efcac7e..a0d366940a730 100644
--- a/llvm.proj
+++ b/llvm.proj
@@ -52,6 +52,7 @@
     <_LLVMBuildArgs Include='-DLLVM_ENABLE_PDB:BOOL=ON' />
     <_LLVMBuildArgs Condition="'$(BuildOS)' == 'Windows_NT'" Include='-DLLVM_USE_CRT_DEBUG=MTd' />
     <_LLVMBuildArgs Condition="'$(BuildOS)' == 'Windows_NT'" Include='-DLLVM_USE_CRT_RELEASE=MT' />
+    <_LLVMBuildArgs Condition="'$(BuildOS)' == 'Windows_NT'" Include='-DLLVM_ENABLE_ZLIB=OFF' />
   </ItemGroup>
 
   <PropertyGroup Condition="'$(BuildOS)' != 'Windows_NT'">