diff --git a/build_system/build_backend.rs b/build_system/build_backend.rs
index ddc099b5388..48faec8bc4b 100644
--- a/build_system/build_backend.rs
+++ b/build_system/build_backend.rs
@@ -39,5 +39,5 @@ pub(crate) fn build_backend(
     eprintln!("[BUILD] rustc_codegen_cranelift");
     super::utils::spawn_and_wait(cmd);
 
-    Path::new("target").join(&host_triple).join(&channel)
+    Path::new("target").join(host_triple).join(channel)
 }
diff --git a/build_system/mod.rs b/build_system/mod.rs
index 0124d47de75..3a6d58a2a6d 100644
--- a/build_system/mod.rs
+++ b/build_system/mod.rs
@@ -73,7 +73,7 @@ pub fn main() {
         eprintln!("Switch to the MinGW toolchain for Windows support.");
         eprintln!("Hint: You can use `rustup set default-host x86_64-pc-windows-gnu` to");
         eprintln!("set the global default target to MinGW");
-        // process::exit(1);
+        process::exit(1);
     }
 
 
@@ -83,7 +83,7 @@ pub fn main() {
             if args.next().is_some() {
                 arg_error!("./y.rs prepare doesn't expect arguments");
             }
-            prepare::prepare(&target_triple);
+            prepare::prepare(&host_triple);
             process::exit(0);
         }
         Some("build") => Command::Build,
diff --git a/build_system/prepare.rs b/build_system/prepare.rs
index 4580c4b6549..b499aaa703c 100644
--- a/build_system/prepare.rs
+++ b/build_system/prepare.rs
@@ -8,7 +8,7 @@ use std::process::Command;
 use super::rustc_info::{get_file_name, get_rustc_path, get_rustc_version};
 use super::utils::{copy_dir_recursively, spawn_and_wait};
 
-pub(crate) fn prepare(target_triple: &str) {
+pub(crate) fn prepare(host_triple: &str) {
     prepare_sysroot();
 
     eprintln!("[INSTALL] hyperfine");
@@ -49,8 +49,8 @@ pub(crate) fn prepare(target_triple: &str) {
     build_cmd.arg("build").env_remove("CARGO_TARGET_DIR").current_dir("simple-raytracer");
     spawn_and_wait(build_cmd);
     fs::copy(
-        Path::new("simple-raytracer/target/debug").join(get_file_name("main", "bin", target_triple)),
-        Path::new("simple-raytracer").join(get_file_name("raytracer_cg_llvm", "bin", target_triple)),
+        Path::new("simple-raytracer/target/debug").join(get_file_name("main", "bin", host_triple)),
+        Path::new("simple-raytracer").join(get_file_name("raytracer_cg_llvm", "bin", host_triple)),
     )
     .unwrap();
 }