diff --git a/en_US/installation/0-install.iredmail.on.openbsd.md b/en_US/installation/0-install.iredmail.on.openbsd.md
index 65cf3080..df3a1018 100644
--- a/en_US/installation/0-install.iredmail.on.openbsd.md
+++ b/en_US/installation/0-install.iredmail.on.openbsd.md
@@ -101,7 +101,7 @@ Install Bash shell, it's required by iRedMail.
 
 ```
 # . /root/.profile    # <- This steps is required, used to set PKG_PATH without re-login.
-# pkg_add bash
+# pkg_add bash bzip2
 ```
 
 ### Download the latest release of iRedMail
diff --git a/html/install.iredmail.on.openbsd.html b/html/install.iredmail.on.openbsd.html
index e6a1d7be..b8f43c2c 100644
--- a/html/install.iredmail.on.openbsd.html
+++ b/html/install.iredmail.on.openbsd.html
@@ -127,7 +127,7 @@ near you on OpenBSD web site:
 
 <p>Install Bash shell, it's required by iRedMail.</p>
 <pre><code># . /root/.profile    # &lt;- This steps is required, used to set PKG_PATH without re-login.
-# pkg_add bash
+# pkg_add bash bzip2
 </code></pre>
 
 <h3 id="download-the-latest-release-of-iredmail">Download the latest release of iRedMail</h3>