diff --git a/main.py b/main.py
index df54aa3..4dcbb36 100644
--- a/main.py
+++ b/main.py
@@ -27,7 +27,7 @@ def index():
         text = 'Thanks for adding me to "%s"!' % event['space']['displayName']
         return json.jsonify({'text': text})
     elif event['type'] == 'MESSAGE':
-        text = text_model.make_short_sentence()
+        text = text_model.make_short_sentence(280)
         return json.jsonify({
                             'cards': [{
                                 'sections': [{