diff --git a/en_US/faq/why.no.sieve.support.in.sogo.md b/en_US/faq/why.no.sieve.support.in.sogo.md
index e932c9ec..b6f72252 100644
--- a/en_US/faq/why.no.sieve.support.in.sogo.md
+++ b/en_US/faq/why.no.sieve.support.in.sogo.md
@@ -1,4 +1,4 @@
-# Why no Sieve (Vacation, Forwarding) support in SOGo Groupware
+# Why no sieve support (Vacation, Forwarding) in SOGo Groupware
 
 The situation:
 
diff --git a/html/index.html b/html/index.html
index 14561a20..0a2b9df4 100644
--- a/html/index.html
+++ b/html/index.html
@@ -222,7 +222,7 @@
 <li><a href="backup.restore.html">Backup and restore</a></li>
 <li><a href="customize.maildir.path.html">Customize maildir path</a></li>
 <li><a href="file.locations.html">Locations of configuration and log files of major components</a></li>
-<li><a href="why.no.sieve.support.in.sogo.html">Why no Sieve (Vacation, Forwarding) support in SOGo Groupware</a></li>
+<li><a href="why.no.sieve.support.in.sogo.html">Why no sieve support (Vacation, Forwarding) in SOGo Groupware</a></li>
 </ul><div class="footer">
     <p style="text-align: center; color: grey;">All documents are available in <a href="https://bitbucket.org/zhb/iredmail-docs/src">BitBucket repository</a>, and published under <a href="http://creativecommons.org/licenses/by-nd/3.0/us/" target="_blank">Creative Commons</a> license. You can <a href="https://bitbucket.org/zhb/iredmail-docs/get/tip.tar.bz2">download the latest version</a> for offline reading. If you found something wrong, please do <a href="https://www.iredmail.org/contact.html">contact us</a> to fix it.</p>
 </div>
diff --git a/html/why.no.sieve.support.in.sogo.html b/html/why.no.sieve.support.in.sogo.html
index fa00dd85..2b462f3a 100644
--- a/html/why.no.sieve.support.in.sogo.html
+++ b/html/why.no.sieve.support.in.sogo.html
@@ -2,7 +2,7 @@
 <html>
     <head>
         <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
-        <title>Why no Sieve (Vacation, Forwarding) support in SOGo Groupware</title>
+        <title>Why no sieve support (Vacation, Forwarding) in SOGo Groupware</title>
         <link rel="stylesheet" type="text/css" href="./css/markdown.css" />
     </head>
     <body>
@@ -15,7 +15,7 @@
              />&nbsp;
         <span>iRedMail</span>
     </a>
-    &nbsp;&nbsp;//&nbsp;&nbsp;<a href="./index.html">Document Index</a></div><h1 id="why-no-sieve-vacation-forwarding-support-in-sogo-groupware">Why no Sieve (Vacation, Forwarding) support in SOGo Groupware</h1>
+    &nbsp;&nbsp;//&nbsp;&nbsp;<a href="./index.html">Document Index</a></div><h1 id="why-no-sieve-support-vacation-forwarding-in-sogo-groupware">Why no sieve support (Vacation, Forwarding) in SOGo Groupware</h1>
 <p>The situation:</p>
 <ul>
 <li>If you chose to install both Roundcube webmail and SOGo Groupware during
