diff --git a/core/lib/rules.py b/core/lib/rules.py
index 1159c0b..958960c 100644
--- a/core/lib/rules.py
+++ b/core/lib/rules.py
@@ -107,7 +107,7 @@ def format_webhook(**kwargs):
     return notify_message
 
 
-def rule_notify(rule, index, message, matched):
+def rule_notify(rule, index, message, meta=None):
     """
     Send a notification for a matching rule.
     Gets the notification settings for the rule.
@@ -115,7 +115,7 @@ def rule_notify(rule, index, message, matched):
     :param rule: The rule object, must be specified
     :param index: The index the rule matched on, can be None
     :param message: The message to send, can be None
-    :param matched: The matched fields, can be None
+    :param meta: dict of metadata, contains `aggs` key for the matched fields
     """
     # If there is no message, don't say anything matched
     if message:
@@ -138,7 +138,7 @@ def rule_notify(rule, index, message, matched):
         "rule": rule,
         "index": index,
         "message": message,
-        "matched": matched,
+        "matched": meta["aggs"],
         "notification_settings": notification_settings,
     }
 
@@ -249,7 +249,7 @@ class NotificationRuleData(object):
 
         return new_aggs
 
-    def rule_matched(self, index, message, aggs):
+    def rule_matched(self, index, message, meta):
         """
         A rule has matched.
         If the previous run did not match, send a notification after formatting
@@ -262,8 +262,8 @@ class NotificationRuleData(object):
         log.debug(f"Rule matched: {index} - current match: {current_match}")
         if current_match is False:
             # Matched now, but not before
-            formatted_aggs = self.format_aggs(aggs)
-            rule_notify(self.object, index, message, formatted_aggs)
+            meta["aggs"] = self.format_aggs(meta["aggs"])
+            rule_notify(self.object, index, message, meta)
             self.store_match(index, True)
 
     def rule_no_match(self, index=None):
@@ -309,7 +309,7 @@ class NotificationRuleData(object):
                 if all(aggs_for_index):
                     # All aggs have matched
                     self.rule_matched(
-                        index, results[: self.object.amount], meta["aggs"]
+                        index, results[: self.object.amount], meta
                     )
                     continue
             # Default branch, since the happy path has a continue keyword