diff --git a/bootstrap/build.rs b/bootstrap/build.rs
index 1e21a8d0f5..dae28f09ff 100644
--- a/bootstrap/build.rs
+++ b/bootstrap/build.rs
@@ -2,7 +2,10 @@ use std::env;
 
 fn main() {
     let manifest_dir = env::var("CARGO_MANIFEST_DIR").unwrap();
-    let arch = env::var("CARGO_CFG_TARGET_ARCH").unwrap();
+    let mut arch = env::var("CARGO_CFG_TARGET_ARCH").unwrap();
+    if arch == "x86" {
+        arch = "i586".to_owned();
+    }
 
     println!("cargo::rustc-link-arg=-z");
     println!("cargo::rustc-link-arg=max-page-size=4096");