diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index 39e565f..72a755c 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -53,7 +53,7 @@ jobs:
         $env:LIB="C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Tools\MSVC\14.38.33130\lib\x64;C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Tools\MSVC\14.38.33130\atlmfc\lib\x64;C:\Program Files (x86)\Windows Kits\10\lib\10.0.22621.0\ucrt\x64;C:\Program Files (x86)\Windows Kits\10\lib\10.0.22621.0\um\x64;"
         $env:PATH="C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Tools\MSVC\14.38.33130\bin\HostX64\x64;C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Tools\MSVC\14.38.33130\bin\HostX64\x64;C:\Program Files (x86)\Windows Kits\10\bin\10.0.22621.0\x64;C:\Program Files (x86)\Windows Kits\10\bin\x64;D:\a\croaring-rs\croaring-rs\target\release\deps;D:\a\croaring-rs\croaring-rs\target\release;C:\Users\runneradmin\.rustup\toolchains\nightly-x86_64-pc-windows-msvc\lib\rustlib\x86_64-pc-windows-msvc\lib;C:\Users\runneradmin\.rustup\toolchains\nightly-x86_64-pc-windows-msvc\bin;C:\Program Files\PowerShell\7;/c/Users/runneradmin/.cargo/bin;C:\Program Files\MongoDB\Server\5.0\bin;C:\aliyun-cli;C:\vcpkg;C:\Program Files (x86)\NSIS\;C:\tools\zstd;C:\Program Files\Mercurial\;C:\hostedtoolcache\windows\stack\2.13.1\x64;C:\cabal\bin;C:\\ghcup\bin;C:\mingw64\bin;C:\Program Files\dotnet;C:\Program Files\MySQL\MySQL Server 8.0\bin;C:\Program Files\R\R-4.3.2\bin\x64;C:\SeleniumWebDrivers\GeckoDriver;C:\SeleniumWebDrivers\EdgeDriver\;C:\SeleniumWebDrivers\ChromeDriver;C:\Program Files (x86)\sbt\bin;C:\Program Files (x86)\GitHub CLI;C:\Program Files\Git\bin;C:\Program Files (x86)\pipx_bin;C:\npm\prefix;C:\hostedtoolcache\windows\go\1.20.13\x64\bin;C:\hostedtoolcache\windows\Python\3.9.13\x64\Scripts;C:\hostedtoolcache\windows\Python\3.9.13\x64;C:\hostedtoolcache\windows\Ruby\3.0.6\x64\bin;C:\Program Files\OpenSSL\bin;C:\tools\kotlinc\bin;C:\hostedtoolcache\windows\Java_Temurin-Hotspot_jdk\8.0.402-6\x64\bin;C:\Program Files\ImageMagick-7.1.1-Q16-HDRI;C:\Program Files\Microsoft SDKs\Azure\CLI2\wbin;C:\ProgramData\kind;C:\ProgramData\Chocolatey\bin;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Windows\System32\OpenSSH\;C:\Program Files\dotnet\;C:\Program Files\PowerShell\7\;C:\Program Files\Microsoft\Web Platform Installer\;C:\Program Files\Microsoft SQL Server\Client SDK\ODBC\170\Tools\Binn\;C:\Program Files\Microsoft SQL Server\150\Tools\Binn\;C:\Program Files (x86)\Windows Kits\10\Windows Performance Toolkit\;C:\Program Files\Microsoft SQL Server\130\DTS\Binn\;C:\Program Files\Microsoft SQL Server\140\DTS\Binn\;C:\Program Files\Microsoft SQL Server\150\DTS\Binn\;C:\Program Files\Microsoft SQL Server\160\DTS\Binn\;C:\Strawberry\c\bin;C:\Strawberry\perl\site\bin;C:\Strawberry\perl\bin;C:\ProgramData\chocolatey\lib\pulumi\tools\Pulumi\bin;C:\Program Files\TortoiseSVN\bin;C:\Program Files\CMake\bin;C:\ProgramData\chocolatey\lib\maven\apache-maven-3.8.7\bin;C:\Program Files\Microsoft Service Fabric\bin\Fabric\Fabric.Code;C:\Program Files\Microsoft SDKs\Service Fabric\Tools\ServiceFabricLocalClusterManager;C:\Program Files\nodejs\;C:\Program Files\Git\cmd;C:\Program Files\Git\mingw64\bin;C:\Program Files\Git\usr\bin;C:\Program Files\GitHub CLI\;c:\tools\php;C:\Program Files (x86)\sbt\bin;C:\Program Files\Amazon\AWSCLIV2\;C:\Program Files\Amazon\SessionManagerPlugin\bin\;C:\Program Files\Amazon\AWSSAMCLI\bin\;C:\Program Files\Microsoft SQL Server\130\Tools\Binn\;C:\Program Files\LLVM\bin;C:\Users\runneradmin\.dotnet\tools;C:\Users\runneradmin\.cargo\bin;C:\Users\runneradmin\AppData\Local\Microsoft\WindowsApps"
         $env:INCLUDE="C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Tools\MSVC\14.38.33130\include;C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Tools\MSVC\14.38.33130\atlmfc\include;C:\Program Files (x86)\Windows Kits\10\include\10.0.22621.0\ucrt;C:\Program Files (x86)\Windows Kits\10\include\10.0.22621.0\um;C:\Program Files (x86)\Windows Kits\10\include\10.0.22621.0\cppwinrt;C:\Program Files (x86)\Windows Kits\10\include\10.0.22621.0\winrt;C:\Program Files (x86)\Windows Kits\10\include\10.0.22621.0\shared;"
-        & "C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Tools\MSVC\14.38.33130\bin\HostX64\x64\cl.exe" -nologo -MD -O2 -Brepro /Fe:roaring_fast_or.exe /Zi /DEBUG /D "CROARING_COMPILER_SUPPORTS_AVX512=0" ./roaring_fast_or.c
+        & "C:\Program Files\Microsoft Visual Studio\2022\Enterprise\VC\Tools\MSVC\14.38.33130\bin\HostX64\x64\cl.exe" -nologo -MD -O2 -Brepro /Fe:roaring_fast_or.exe /Zi /DEBUG /D "ROARING_DISABLE_AVX=1" ./roaring_fast_or.c
         echo "running"
         ./roaring_fast_or.exe
         echo "$LASTEXITCODE"
diff --git a/croaring-sys/build.rs b/croaring-sys/build.rs
index 2a573bb..1a2d918 100644
--- a/croaring-sys/build.rs
+++ b/croaring-sys/build.rs
@@ -11,8 +11,8 @@ fn main() {
 
     // TODO:
     if (env::var("CARGO_CFG_TARGET_OS").unwrap() == "windows") {
-        println!("cargo::warning=Disabling AVX512");
-        build.define("CROARING_COMPILER_SUPPORTS_AVX512", "0");
+        println!("cargo::warning=Disabling AVX");
+        build.define("ROARING_DISABLE_AVX", "1");
     }
 
     if let Ok(target_arch) = env::var("ROARING_ARCH") {