diff --git a/cli/src/tests/helpers/dirs.rs b/cli/src/tests/helpers/dirs.rs
index 4bf345d8..e4f220ea 100644
--- a/cli/src/tests/helpers/dirs.rs
+++ b/cli/src/tests/helpers/dirs.rs
@@ -4,7 +4,37 @@ lazy_static! {
     static ref HEADER_DIR: PathBuf = ROOT_DIR.join("lib").join("include");
     static ref GRAMMARS_DIR: PathBuf = ROOT_DIR.join("test").join("fixtures").join("grammars");
     static ref SCRATCH_DIR: PathBuf = {
-        let result = ROOT_DIR.join("target").join("scratch");
+        // https://doc.rust-lang.org/reference/conditional-compilation.html
+        let vendor = if cfg!(target_vendor = "apple") {
+            "apple"
+        } else if cfg!(target_vendor = "fortanix") {
+            "fortanix"
+        } else if cfg!(target_vendor = "pc") {
+            "pc"
+        } else {
+            "unknown"
+        };
+        let env = if cfg!(target_env = "gnu") {
+            "gnu"
+        } else if cfg!(target_env = "msvc") {
+            "msvc"
+        } else if cfg!(target_env = "musl") {
+            "musl"
+        } else if cfg!(target_env = "sgx") {
+            "sgx"
+        } else {
+            "unknown"
+        };
+        let endian = if cfg!(target_endian = "little") {
+            "little"
+        } else if cfg!(target_endian = "big") {
+            "big"
+        } else {
+            "unknown"
+        };
+
+        let machine = format!("{}-{}-{}-{}-{}", std::env::consts::ARCH, std::env::consts::OS, vendor, env, endian);
+        let result = ROOT_DIR.join("target").join("scratch").join(machine);
         fs::create_dir_all(&result).unwrap();
         result
     };