diff --git a/storagenode/piecestore/endpoint.go b/storagenode/piecestore/endpoint.go
index e5a29836a..5de340828 100644
--- a/storagenode/piecestore/endpoint.go
+++ b/storagenode/piecestore/endpoint.go
@@ -266,19 +266,19 @@ func (endpoint *Endpoint) Upload(stream pb.DRPCPiecestore_UploadStream) (err err
 			mon.IntVal("upload_failure_size_bytes").Observe(uploadSize)
 			mon.IntVal("upload_failure_duration_ns").Observe(uploadDuration)
 			mon.FloatVal("upload_failure_rate_bytes_per_sec").Observe(uploadRate)
-			endpoint.log.Error("upload failed", zap.Stringer("Piece ID", limit.PieceId), zap.Stringer("Satellite ID", limit.SatelliteId), zap.Stringer("Action", limit.Action), zap.Error(err))
+			endpoint.log.Error("upload failed", zap.Stringer("Piece ID", limit.PieceId), zap.Stringer("Satellite ID", limit.SatelliteId), zap.Stringer("Action", limit.Action), zap.Error(err), zap.Int64("Size", uploadSize))
 		} else if errs2.IsCanceled(err) && !committed {
 			mon.Meter("upload_cancel_byte_meter").Mark64(uploadSize)
 			mon.IntVal("upload_cancel_size_bytes").Observe(uploadSize)
 			mon.IntVal("upload_cancel_duration_ns").Observe(uploadDuration)
 			mon.FloatVal("upload_cancel_rate_bytes_per_sec").Observe(uploadRate)
-			endpoint.log.Info("upload canceled", zap.Stringer("Piece ID", limit.PieceId), zap.Stringer("Satellite ID", limit.SatelliteId), zap.Stringer("Action", limit.Action))
+			endpoint.log.Info("upload canceled", zap.Stringer("Piece ID", limit.PieceId), zap.Stringer("Satellite ID", limit.SatelliteId), zap.Stringer("Action", limit.Action), zap.Int64("Size", uploadSize))
 		} else {
 			mon.Meter("upload_success_byte_meter").Mark64(uploadSize)
 			mon.IntVal("upload_success_size_bytes").Observe(uploadSize)
 			mon.IntVal("upload_success_duration_ns").Observe(uploadDuration)
 			mon.FloatVal("upload_success_rate_bytes_per_sec").Observe(uploadRate)
-			endpoint.log.Info("uploaded", zap.Stringer("Piece ID", limit.PieceId), zap.Stringer("Satellite ID", limit.SatelliteId), zap.Stringer("Action", limit.Action))
+			endpoint.log.Info("uploaded", zap.Stringer("Piece ID", limit.PieceId), zap.Stringer("Satellite ID", limit.SatelliteId), zap.Stringer("Action", limit.Action), zap.Int64("Size", uploadSize))
 		}
 	}()