diff --git a/waku/v2/protocol/waku_archive/archive_metrics.nim b/waku/v2/protocol/waku_archive/archive_metrics.nim
index 3557e2db3..52fbd45fd 100644
--- a/waku/v2/protocol/waku_archive/archive_metrics.nim
+++ b/waku/v2/protocol/waku_archive/archive_metrics.nim
@@ -15,7 +15,6 @@ declarePublicHistogram waku_archive_query_duration_seconds, "history query durat
 
 # Error types (metric label values)
 const
-  invalidMessage* = "invalid_message"
   invalidMessageOld* = "invalid_message_too_old"
   invalidMessageFuture* = "invalid_message_future_timestamp"
   insertFailure* = "insert_failure"