diff --git a/build_system/prepare.rs b/build_system/prepare.rs
index 09fbdc3104d..ea03870f6e5 100644
--- a/build_system/prepare.rs
+++ b/build_system/prepare.rs
@@ -204,12 +204,7 @@ pub(crate) fn apply_patches(dirs: &Dirs, crate_name: &str, source_dir: &Path, ta
 
     remove_dir_if_exists(target_dir);
     fs::create_dir_all(target_dir).unwrap();
-    if crate_name == "stdlib" {
-        fs::create_dir(target_dir.join("library")).unwrap();
-        copy_dir_recursively(&source_dir.join("library"), &target_dir.join("library"));
-    } else {
-        copy_dir_recursively(source_dir, target_dir);
-    }
+    copy_dir_recursively(source_dir, target_dir);
 
     init_git_repo(target_dir);