diff --git a/README.rst b/README.rst
index 03adb38..ceed55b 100644
--- a/README.rst
+++ b/README.rst
@@ -102,10 +102,10 @@ Usage Example
 
         entries = sorted(path.iterdir(), key=lambda x: (not x.is_dir(), x.name.lower()))
         for index, entry in enumerate(entries):
-            connector = "├── " if index < len(entries) - 1 else "└── "
+            connector = "|-- " if index < len(entries) - 1 else "'-- "
             print(f"{prefix}{connector}{entry.name}")
             if entry.is_dir():
-                extension = "│   " if index < len(entries) - 1 else "    "
+                extension = "|   " if index < len(entries) - 1 else "    "
                 print_directory_tree(entry, prefix + extension)
 
 
diff --git a/adafruit_pathlib.py b/adafruit_pathlib.py
index 98edb1e..c23096f 100644
--- a/adafruit_pathlib.py
+++ b/adafruit_pathlib.py
@@ -350,7 +350,7 @@ def iterdir(self):
             OSError: If self.is_dir() is False.
         """
         if not self.is_dir():
-            raise OSError(errno.ENOTDIR, f"Not a directory: {self._path}")
+            raise OSError(f"Not a directory: {self._path}")
         for name in os.listdir(self._path):
             yield Path(self._path, name)
 
diff --git a/examples/pathlib_simpletest.py b/examples/pathlib_simpletest.py
index e46110a..c59df91 100644
--- a/examples/pathlib_simpletest.py
+++ b/examples/pathlib_simpletest.py
@@ -12,10 +12,10 @@ def print_directory_tree(path: adafruit_pathlib.Path, prefix: str = ""):
 
     entries = sorted(path.iterdir(), key=lambda x: (not x.is_dir(), x.name.lower()))
     for index, entry in enumerate(entries):
-        connector = "├── " if index < len(entries) - 1 else "└── "
+        connector = "|-- " if index < len(entries) - 1 else "'-- "
         print(f"{prefix}{connector}{entry.name}")
         if entry.is_dir():
-            extension = "│   " if index < len(entries) - 1 else "    "
+            extension = "|   " if index < len(entries) - 1 else "    "
             print_directory_tree(entry, prefix + extension)