diff --git a/fet2020/posts/models.py b/fet2020/posts/models.py
index ef76dadb..2185e9c0 100644
--- a/fet2020/posts/models.py
+++ b/fet2020/posts/models.py
@@ -110,7 +110,7 @@ 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 ="":
+            if not value or value == "":
                 return value
             self.agenda_key = self.get_agenda_key()
         request_logger.info("AGENDA KEY: %s " % self.agenda_key)