diff --git a/searx/templates/oscar/preferences.html b/searx/templates/oscar/preferences.html
index b03929df3..2211da2aa 100644
--- a/searx/templates/oscar/preferences.html
+++ b/searx/templates/oscar/preferences.html
@@ -174,14 +174,14 @@
                                     <th>{{ _("Avg. time") }}</th>
                                     <th>{{ _("Max time") }}</th>
                                     {% else %}
-                                    <th>{{ _("Max time") }}</th>
-                                    <th>{{ _("Avg. time") }}</th>
-                                    <th>{{ _("Time range") }}</th>
-                                    <th>{{ _("SafeSearch") }}</th>
-                                    <th>{{ _("Selected language") }}</th>
-                                    <th>{{ _("Shortcut") }}</th>
-                                    <th>{{ _("Engine name") }}</th>
-                                    <th>{{ _("Allow") }}</th>
+                                    <th class="text-right">{{ _("Max time") }}</th>
+                                    <th class="text-right">{{ _("Avg. time") }}</th>
+                                    <th class="text-right">{{ _("Time range") }}</th>
+                                    <th class="text-right">{{ _("SafeSearch") }}</th>
+                                    <th class="text-right">{{ _("Selected language") }}</th>
+                                    <th class="text-right">{{ _("Shortcut") }}</th>
+                                    <th class="text-right">{{ _("Engine name") }}</th>
+                                    <th class="text-right">{{ _("Allow") }}</th>
                                     {% endif %}
                                 </tr>
                         {% for search_engine in engines_by_category[categ] %}
@@ -256,10 +256,10 @@
                 </p>
                 <table class="table table-striped">
                     <tr>
-                        <th class="text-muted">{{ _('Name') }}</th>
-                        <th class="text-muted">{{ _('Keywords') }}</th>
-                        <th class="text-muted">{{ _('Description') }}</th>
-                        <th class="text-muted">{{ _('Examples') }}</th>
+                        <th class="text-muted{% if rtl %} text-right{% endif %}">{{ _('Name') }}</th>
+                        <th class="text-muted{% if rtl %} text-right{% endif %}">{{ _('Keywords') }}</th>
+                        <th class="text-muted{% if rtl %} text-right{% endif %}">{{ _('Description') }}</th>
+                        <th class="text-muted{% if rtl %} text-right{% endif %}">{{ _('Examples') }}</th>
                     </tr>
 
                     {% for answerer in answerers %}
@@ -285,8 +285,8 @@
                 {% if cookies %}
                 <table class="table table-striped">
                     <tr>
-                        <th class="text-muted" style="padding-right:40px;">{{ _('Cookie name') }}</th>
-                        <th class="text-muted">{{ _('Value') }}</th>
+                        <th class="text-muted{% if rtl %} text-right{% endif %}" style="padding-right:40px;">{{ _('Cookie name') }}</th>
+                        <th class="text-muted{% if rtl %} text-right{% endif %}">{{ _('Value') }}</th>
                     </tr>
 
                     {% for cookie in cookies %}
diff --git a/searx/translations/fa_IR/LC_MESSAGES/messages.mo b/searx/translations/fa_IR/LC_MESSAGES/messages.mo
index a2f503386..56c04178f 100644
Binary files a/searx/translations/fa_IR/LC_MESSAGES/messages.mo and b/searx/translations/fa_IR/LC_MESSAGES/messages.mo differ
diff --git a/searx/translations/fa_IR/LC_MESSAGES/messages.po b/searx/translations/fa_IR/LC_MESSAGES/messages.po
index 6689dafe7..28cfd1ed6 100644
--- a/searx/translations/fa_IR/LC_MESSAGES/messages.po
+++ b/searx/translations/fa_IR/LC_MESSAGES/messages.po
@@ -109,7 +109,7 @@ msgstr "توابع آماری"
 
 #: searx/answerers/statistics/answerer.py:54
 msgid "Compute {functions} of the arguments"
-msgstr "پردازش {عملکرد های} نشانوند ها<br>"
+msgstr "پردازش {functions} نشانوند ها<br>"
 
 #: searx/engines/__init__.py:194
 msgid "Engine time (sec)"
diff --git a/searx/webapp.py b/searx/webapp.py
index 8c3531069..f3f5f21b8 100755
--- a/searx/webapp.py
+++ b/searx/webapp.py
@@ -144,7 +144,7 @@ if not searx_debug \
 
 babel = Babel(app)
 
-rtl_locales = ['ar', 'arc', 'bcc', 'bqi', 'ckb', 'dv', 'fa', 'glk', 'he',
+rtl_locales = ['ar', 'arc', 'bcc', 'bqi', 'ckb', 'dv', 'fa', 'fa_IR', 'glk', 'he',
                'ku', 'mzn', 'pnb', 'ps', 'sd', 'ug', 'ur', 'yi']
 
 # used when translating category names