diff --git a/fet2020/posts/models.py b/fet2020/posts/models.py
index 384a11e5..ef76dadb 100644
--- a/fet2020/posts/models.py
+++ b/fet2020/posts/models.py
@@ -110,6 +110,8 @@ class Post(models.Model):
         request_logger.info("Accessing etherpad ...")
         if not self.agenda_key:
             request_logger.info("not agenda key!")
+            if not value or value ="":
+                return value
             self.agenda_key = self.get_agenda_key()
         request_logger.info("AGENDA KEY: %s " % self.agenda_key)
         request_logger.info("VALUE: %s " % value)