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/docs/_static/custom.css b/docs/_static/custom.css
new file mode 100644
index 0000000..d60cf4b
--- /dev/null
+++ b/docs/_static/custom.css
@@ -0,0 +1,8 @@
+/* SPDX-FileCopyrightText: 2025 Sam Blenny
+ * SPDX-License-Identifier: MIT
+ */
+
+/* Monkey patch the rtd theme to prevent horizontal stacking of short items
+ * see https://github.com/readthedocs/sphinx_rtd_theme/issues/1301
+ */
+.py.property{display: block !important;}
diff --git a/docs/conf.py b/docs/conf.py
index 6d44518..8d16225 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -116,6 +116,9 @@
 # so a file named "default.css" will overwrite the builtin "default.css".
 html_static_path = ["_static"]
 
+# Include extra css to work around rtd theme glitches
+html_css_files = ["custom.css"]
+
 # The name of an image file (relative to this directory) to use as a favicon of
 # the docs.  This file should be a Windows icon file (.ico) being 16x16 or 32x32
 # pixels large.
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)
 
 
diff --git a/ruff.toml b/ruff.toml
index a6ed64f..38b523c 100644
--- a/ruff.toml
+++ b/ruff.toml
@@ -17,7 +17,6 @@ extend-select = [
   "PLC2401",  # non-ascii-name
   "PLC2801",  # unnecessary-dunder-call
   "PLC3002",  # unnecessary-direct-lambda-call
-  "E999",  # syntax-error
   "PLE0101",  # return-in-init
   "F706",  # return-outside-function
   "F704",  # yield-outside-function