diff --git a/README.md b/README.md
index 2b338bc..c6723d8 100644
--- a/README.md
+++ b/README.md
@@ -357,7 +357,7 @@ import re
 
 ### Match Object
 ```python
-<str>   = <Match>.group()   # Whole match.
+<str>   = <Match>.group()   # Whole match. Also group(0).
 <str>   = <Match>.group(1)  # Part in first bracket.
 <tuple> = <Match>.groups()  # All bracketed parts.
 <int>   = <Match>.start()   # Start index of a match.
diff --git a/index.html b/index.html
index edc95a6..b775f91 100644
--- a/index.html
+++ b/index.html
@@ -447,7 +447,7 @@ to_exclusive   = &lt;range&gt;.stop
 <li><strong>Use <code class="python hljs"><span class="hljs-string">'?'</span></code> to make an operator non-greedy.</strong></li>
 </ul>
 <h3 id="matchobject">Match Object</h3>
-<pre><code class="python language-python hljs">&lt;str&gt;   = &lt;Match&gt;.group()   <span class="hljs-comment"># Whole match.</span>
+<pre><code class="python language-python hljs">&lt;str&gt;   = &lt;Match&gt;.group()   <span class="hljs-comment"># Whole match. Also group(0).</span>
 &lt;str&gt;   = &lt;Match&gt;.group(<span class="hljs-number">1</span>)  <span class="hljs-comment"># Part in first bracket.</span>
 &lt;tuple&gt; = &lt;Match&gt;.groups()  <span class="hljs-comment"># All bracketed parts.</span>
 &lt;int&gt;   = &lt;Match&gt;.start()   <span class="hljs-comment"># Start index of a match.</span>