diff --git a/README.md b/README.md
index 46a02b1..a5fc558 100644
--- a/README.md
+++ b/README.md
@@ -1194,7 +1194,7 @@ True
 ### Collection
 * **Only required methods are iter() and len().**
 * **This cheatsheet actually means `'<iterable>'` when it uses `'<collection>'`.**
-* **I chose not to use the name iterable because it sounds scarier and more vague than collection.**
+* **I chose not to use the name 'iterable' because it sounds scarier and more vague than 'collection'.**
 ```python
 class MyCollection:
     def __init__(self, a):
diff --git a/index.html b/index.html
index bd4bb26..3546e72 100644
--- a/index.html
+++ b/index.html
@@ -1107,7 +1107,7 @@ con  = sqlite3.connect(<span class="hljs-string">'&lt;path&gt;'</span>); <span c
 <ul>
 <li><strong>Only required methods are iter() and len().</strong></li>
 <li><strong>This cheatsheet actually means <code class="python hljs"><span class="hljs-string">'&lt;iterable&gt;'</span></code> when it uses <code class="python hljs"><span class="hljs-string">'&lt;collection&gt;'</span></code>.</strong></li>
-<li><strong>I chose not to use the name iterable because it sounds scarier and more vague than collection.</strong></li>
+<li><strong>I chose not to use the name 'iterable' because it sounds scarier and more vague than 'collection'.</strong></li>
 </ul>
 <pre><code class="python language-python hljs"><span class="hljs-class"><span class="hljs-keyword">class</span> <span class="hljs-title">MyCollection</span>:</span>
     <span class="hljs-function"><span class="hljs-keyword">def</span> <span class="hljs-title">__init__</span><span class="hljs-params">(self, a)</span>:</span>