diff --git a/index.html b/index.html
index 9b7b41a..0a08ad3 100644
--- a/index.html
+++ b/index.html
@@ -533,7 +533,7 @@ import sys
 
 </li>
 
-<li><p>Between a trailing comma and a following close parentheses. :</p>
+<li><p>Between a trailing comma and a following close parenthesis. :</p>
 
 <p class="yes"><span>Yes:</span></p>
 <pre><code class="language-python">foo = (0,)</code></pre>