diff --git a/elastalert/elastalert.py b/elastalert/elastalert.py
index 9a23412b..7a736b26 100755
--- a/elastalert/elastalert.py
+++ b/elastalert/elastalert.py
@@ -1353,7 +1353,7 @@ def send_alert(self, matches, rule, alert_time=None, retried=False):
             kb_link = generate_opensearch_discover_url(rule, matches[0])
             if kb_link:
                 kb_link_formatter = self.get_opensearch_discover_external_url_formatter(rule)
-                matches[0]['kibana_discover_url'] =  kb_link_formatter.format(kb_link)
+                matches[0]['opensearch_discover_url'] =  kb_link_formatter.format(kb_link)