diff --git a/build.rs b/build.rs
index ecc3726..bbd46f5 100644
--- a/build.rs
+++ b/build.rs
@@ -1,9 +1,15 @@
+use std::env::var;
+
 fn main() {
     #[cfg(feature = "user")] {
-        if std::env::var("TARGET").map(
+        if var("TARGET").map(
             |t| t == "x86_64-pc-windows-gnu" || t == "i686-pc-windows-gnu"
         ).unwrap_or(false) {
-            println!("cargo:rustc-link-lib=winapi_ntdll");
+            if var("WINAPI_NO_BUNDLED_LIBRARIES").is_ok() {
+                println!("cargo:rustc-link-lib=ntdll");
+            } else {
+                println!("cargo:rustc-link-lib=winapi_ntdll");
+            }
         }
     }
 }