diff --git a/google_secops_parser/parsedmarc.conf b/google_secops_parser/parsedmarc.conf
index ca5c13b..74624f7 100644
--- a/google_secops_parser/parsedmarc.conf
+++ b/google_secops_parser/parsedmarc.conf
@@ -177,7 +177,7 @@ filter {
     on_error => "no_json_payload"
   }
   if [no_json_payload] {
-    drop {}
+    drop { tag => "TAG_MALFORMED_ENCODING" }
   }
 
   json {
@@ -185,7 +185,7 @@ filter {
     on_error => "not_json"
   }
   if [not_json] {
-    drop {}
+    drop { tag => "TAG_MALFORMED_ENCODING" }
   }
 
   # ---------------------------------------------------------------------------
@@ -232,7 +232,7 @@ filter {
 
   # Not a parsedmarc record we recognize: drop rather than emit an invalid event.
   if [report_type] == "" {
-    drop {}
+    drop { tag => "TAG_UNSUPPORTED" }
   }
 
   # ===========================================================================