diff --git a/README.md b/README.md
index b4c076b..4e3cb01 100644
--- a/README.md
+++ b/README.md
@@ -1731,7 +1731,7 @@ os.remove(<path>)                   # Deletes the file.
 os.rmdir(<path>)                    # Deletes the empty directory.
 shutil.rmtree(<path>)               # Deletes the directory.
 ```
-* **Paths can be either strings, Paths or DirEntry objects.**
+* **Paths can be either strings, Paths, or DirEntry objects.**
 * **Functions report OS related errors by raising either OSError or one of its [subclasses](#exceptions-1).**
 
 ### Shell Commands
diff --git a/index.html b/index.html
index a2e11ae..53a5151 100644
--- a/index.html
+++ b/index.html
@@ -1450,7 +1450,7 @@ os.rmdir(&lt;path&gt;)                    <span class="hljs-comment"># Deletes t
 shutil.rmtree(&lt;path&gt;)               <span class="hljs-comment"># Deletes the directory.</span>
 </code></pre>
 <ul>
-<li><strong>Paths can be either strings, Paths or DirEntry objects.</strong></li>
+<li><strong>Paths can be either strings, Paths, or DirEntry objects.</strong></li>
 <li><strong>Functions report OS related errors by raising either OSError or one of its <a href="#exceptions-1">subclasses</a>.</strong></li>
 </ul>
 <div><h3 id="shellcommands">Shell Commands</h3><pre><code class="python language-python hljs">&lt;pipe&gt; = os.popen(<span class="hljs-string">'&lt;command&gt;'</span>)      <span class="hljs-comment"># Executes command in sh/cmd. Returns its stdout pipe.</span>