diff --git a/internal/metrics/metrics.go b/internal/metrics/metrics.go
index 11da2b7..4a7fe95 100644
--- a/internal/metrics/metrics.go
+++ b/internal/metrics/metrics.go
@@ -86,6 +86,7 @@ const (
 	errUnexpectedEOFStr  = "unexpected_eof_str"
 	errJSONSyntax        = "json_syntax"
 	errBlobTooBig        = "blob_too_big"
+	errInvalidPeerJSON   = "invalid_peer_json"
 	errInvalidPeerData   = "invalid_peer_data"
 	errDeadlineExceeded  = "deadline_exceeded"
 	errHashMismatch      = "hash_mismatch"
@@ -297,6 +298,8 @@ func TrackError(direction string, e error) (shouldLog bool) { // shouldLog is a
 	} else if strings.Contains(err.Error(), "blob must be at most") {
 		//log.Warnln("blob must be at most X bytes is not the same as ErrBlobTooBig")
 		errType = errBlobTooBig
+	} else if strings.Contains(err.Error(), "invalid json request") {
+		errType = errInvalidPeerJSON
 	} else if strings.Contains(err.Error(), "Invalid data") {
 		errType = errInvalidPeerData
 	} else if strings.Contains(err.Error(), "hash of received blob data does not match hash from send request") {
diff --git a/server/peer/server.go b/server/peer/server.go
index 72ab04a..52c4a80 100644
--- a/server/peer/server.go
+++ b/server/peer/server.go
@@ -227,7 +227,7 @@ func (s *Server) handleCompositeRequest(data []byte) ([]byte, error) {
 	if err != nil {
 		var je *json.SyntaxError
 		if ee.As(err, &je) {
-			return nil, errors.Err("invalid json at offset %d in data %s", je.Offset, hex.EncodeToString(data))
+			return nil, errors.Err("invalid json request: offset %d in data %s", je.Offset, hex.EncodeToString(data))
 		}
 		return nil, errors.Err(err)
 	}