diff --git a/src/bootstrap/native.rs b/src/bootstrap/native.rs
index bde0a96f03013..3f4715e78a9ab 100644
--- a/src/bootstrap/native.rs
+++ b/src/bootstrap/native.rs
@@ -181,7 +181,7 @@ impl Step for Llvm {
             .define("LLVM_TARGET_ARCH", target_native.split('-').next().unwrap())
             .define("LLVM_DEFAULT_TARGET_TRIPLE", target_native);
 
-        if target != "aarch64-apple-darwin" {
+        if target != "aarch64-apple-darwin" && !target.contains("windows") {
             cfg.define("LLVM_ENABLE_ZLIB", "ON");
         } else {
             cfg.define("LLVM_ENABLE_ZLIB", "OFF");