diff --git a/app/__init__.py b/app/__init__.py
index dd91726..b77526e 100644
--- a/app/__init__.py
+++ b/app/__init__.py
@@ -162,6 +162,7 @@ cache = Cache()
 def create_app():
     app = Flask(__name__)
     app.config['SITE_NAME'] = 'Pyrom'
+    app.config['SITE_TAGLINE'] = 'anti-social media'
     app.config['DISABLE_SIGNUP'] = False
     app.config['MODS_CAN_INVITE'] = True
     app.config['USERS_CAN_INVITE'] = False
diff --git a/app/templates/common/topnav.html b/app/templates/common/topnav.html
index 90b6d99..945fa18 100644
--- a/app/templates/common/topnav.html
+++ b/app/templates/common/topnav.html
@@ -1,6 +1,6 @@
 <nav id="header" class="plank top">
-  <a class="site-title" href="/">Porom</a>
-  <span>anti-social media</span>
+  <a class="site-title" href="/">{{config.SITE_NAME}}</a>
+  <span>{{config.SITE_TAGLINE or '&nbsp;' | safe}}</span>
   {%- if is_logged_in() -%}
   {%- with user = get_active_user() -%}
   {%- set uc = user.get_unread_count() -%}
diff --git a/config/pyrom_config.toml.example b/config/pyrom_config.toml.example
index 6b0a789..df02537 100644
--- a/config/pyrom_config.toml.example
+++ b/config/pyrom_config.toml.example
@@ -15,6 +15,9 @@ SERVER_NAME = "forum.your.domain"
 # your forum's name, shown on the header.
 SITE_NAME = "Pyrom"
 
+# the forum's tagline, shown below the title.
+SITE_TAGLINE = "anti-social media"
+
 # if true, users can not sign up manually. see the following two settings.
 DISABLE_SIGNUP = false