diff --git a/birthdays-cal.py b/birthdays-cal.py
index 33304d2..845ee4b 100644
--- a/birthdays-cal.py
+++ b/birthdays-cal.py
@@ -69,8 +69,11 @@ def make_event(person, year):
 
     lang_params = {'language': event_config['language']}
 
-    if 'birthday_no_year' not in person:
-        description += ', %d %s' % (age(person, year), zodiac_sign(person))
+    if 'birthday_no_year' in person:
+        description = description.replace('{age}', '')
+
+    description = description.format(
+        age=age(person, year), zodiac=zodiac_sign(person))
 
     event = Event()
     event.add('uid',         sha1(person['name'] + ' birthday ' + str(year)))
diff --git a/sample-config.yml b/sample-config.yml
index e5d7f86..f57e8a0 100644
--- a/sample-config.yml
+++ b/sample-config.yml
@@ -3,7 +3,7 @@ calname: My friends birthdays!
 timezone: UTC
 
 events:
-  description: Happy birthday
+  description: Happy birthday, {age} {zodiac}
   categories: birthday
 
 scale: