diff --git a/src/bootstrap/src/core/build_steps/compile.rs b/src/bootstrap/src/core/build_steps/compile.rs
index 3e79acad1c4b2..9bbebf9b87037 100644
--- a/src/bootstrap/src/core/build_steps/compile.rs
+++ b/src/bootstrap/src/core/build_steps/compile.rs
@@ -1700,6 +1700,7 @@ impl Step for Assemble {
 
         // If we're downloading a compiler from CI, we can use the same compiler for all stages other than 0.
         if builder.download_rustc() {
+            builder.ensure(Std::new(target_compiler, target_compiler.host));
             let sysroot =
                 builder.ensure(Sysroot { compiler: target_compiler, force_recompile: false });
             // Ensure that `libLLVM.so` ends up in the newly created target directory,