diff --git a/en_US/upgrade/0-upgrade.iredmail.0.9.8-0.9.9.md b/en_US/upgrade/0-upgrade.iredmail.0.9.8-0.9.9.md
index 9241a52b..d0fe63ed 100644
--- a/en_US/upgrade/0-upgrade.iredmail.0.9.8-0.9.9.md
+++ b/en_US/upgrade/0-upgrade.iredmail.0.9.8-0.9.9.md
@@ -151,7 +151,7 @@ chmod 0550 mlmmj-amime-receive
 ### Fix address mapping issue for mlmmj mailing list
 
 With default settings of iRedMail-0.9.8, if you use a per-user alias address
-as member of a mailing list, Postfix doesn't not expand it to the final
+as member of a mailing list, Postfix does not expand it to the final
 recipient. For more details of this bug, please check this 
 [forum post](https://forum.iredmail.org/topic14841-mlmmj-subscription-emails-missing.html).
 Please follow steps below to fix it.
diff --git a/html/upgrade.iredmail.0.9.8-0.9.9.html b/html/upgrade.iredmail.0.9.8-0.9.9.html
index 88ca197d..d80d4437 100644
--- a/html/upgrade.iredmail.0.9.8-0.9.9.html
+++ b/html/upgrade.iredmail.0.9.8-0.9.9.html
@@ -176,7 +176,7 @@ chmod 0550 mlmmj-amime-receive
 
 <h3 id="fix-address-mapping-issue-for-mlmmj-mailing-list">Fix address mapping issue for mlmmj mailing list</h3>
 <p>With default settings of iRedMail-0.9.8, if you use a per-user alias address
-as member of a mailing list, Postfix doesn't not expand it to the final
+as member of a mailing list, Postfix does not expand it to the final
 recipient. For more details of this bug, please check this 
 <a href="https://forum.iredmail.org/topic14841-mlmmj-subscription-emails-missing.html">forum post</a>.
 Please follow steps below to fix it.</p>