diff --git a/tests/all/readme.rs b/tests/all/readme.rs
index 4824de4c..6b38befc 100644
--- a/tests/all/readme.rs
+++ b/tests/all/readme.rs
@@ -6,6 +6,18 @@ use std::fs;
 use utils;
 use wasm_pack::readme;
 
+fn ls(path: &str) {
+    let mut cmd = ::std::process::Command::new("ls");
+    cmd.arg("-r").arg(path);
+    println!("wasm-pack: running: {:?}", cmd);
+    let stdout = cmd
+        .output()
+        .expect("should spawn and run `ls -r <path>` OK")
+        .stdout;
+    let stdout = String::from_utf8_lossy(&stdout);
+    println!("{}", stdout);
+}
+
 #[test]
 fn it_copies_a_readme_default_path() {
     let fixture = utils::fixture(".");
@@ -18,6 +30,8 @@ fn it_copies_a_readme_default_path() {
         "wasm-pack: should have copied README.md from '{}' to '{}'",
         crate_readme_path, pkg_readme_path
     );
+    ls(&fixture.path);
+
     assert!(fs::metadata(&crate_readme_path).is_ok());
     assert!(fs::metadata(&pkg_readme_path).is_ok());
 
@@ -38,6 +52,8 @@ fn it_creates_a_package_json_provided_path() {
         "wasm-pack: should have copied README.md from '{}' to '{}'",
         crate_readme_path, pkg_readme_path
     );
+    ls(&fixture.path);
+
     assert!(fs::metadata(&crate_readme_path).is_ok());
     assert!(fs::metadata(&pkg_readme_path).is_ok());