diff --git a/README.md b/README.md
index da23e4b..e2de229 100644
--- a/README.md
+++ b/README.md
@@ -2115,7 +2115,7 @@ from concurrent.futures import ThreadPoolExecutor, as_completed
 #### Or:
 ```python
 with <lock>:                                   # Enters the block by calling acquire(),
-    ...                                        # and exits it with release().
+    ...                                        # and exits it with release(), even on error.
 ```
 
 ### Semaphore, Event, Barrier
diff --git a/index.html b/index.html
index 9ceb918..47b47b5 100644
--- a/index.html
+++ b/index.html
@@ -1751,7 +1751,7 @@ CompletedProcess(args=[<span class="hljs-string">'bc'</span>, <span class="hljs-
 </code></pre></div>
 
 <div><h4 id="or-1">Or:</h4><pre><code class="python language-python hljs"><span class="hljs-keyword">with</span> &lt;lock&gt;:                                   <span class="hljs-comment"># Enters the block by calling acquire(),</span>
-    ...                                        <span class="hljs-comment"># and exits it with release().</span>
+    ...                                        <span class="hljs-comment"># and exits it with release(), even on error.</span>
 </code></pre></div>
 
 <div><h3 id="semaphoreeventbarrier">Semaphore, Event, Barrier</h3><pre><code class="python language-python hljs">&lt;Semaphore&gt; = Semaphore(value=<span class="hljs-number">1</span>)               <span class="hljs-comment"># Lock that can be acquired by 'value' threads.</span>