diff --git a/www/contribute/producing-an-ebook-step-by-step.php b/www/contribute/producing-an-ebook-step-by-step.php
index ce54344a..5bf211e5 100644
--- a/www/contribute/producing-an-ebook-step-by-step.php
+++ b/www/contribute/producing-an-ebook-step-by-step.php
@@ -339,7 +339,7 @@ proceed to seal up my confession, I bring the life of that unhappy Henry Jekyll
 								</tr>
 							</tbody>
 						</table>
-						<code class="terminal"><span><b>se</b> interactive-replace <i>"([Ss])ome one" "\1omeone"</i> src/epub/text/<i class="glob">*</i></span></code>
+						<code class="terminal"><span><b>se</b> interactive-replace <i>"\b([Ss])ome one" "\1omeone"</i> src/epub/text/<i class="glob">*</i></span></code>
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 					<li>
 						<h3>any one ➔ anyone</h3>