diff --git a/network/discovery/dv5_service.go b/network/discovery/dv5_service.go
index 95e3714e53..a6dcef9e30 100644
--- a/network/discovery/dv5_service.go
+++ b/network/discovery/dv5_service.go
@@ -326,7 +326,11 @@ func (dvs *DiscV5Service) RegisterSubnets(logger *zap.Logger, subnets ...uint64)
 	}
 	if isUpdated {
 		dvs.subnets = updatedSubnets
-		logger.Debug("updated subnets", fields.UpdatedENRLocalNode(dvs.dv5Listener.LocalNode()))
+		logger.Debug("updated subnets",
+			fields.UpdatedENRLocalNode(dvs.dv5Listener.LocalNode()),
+			zap.Uint64s("input_subnets", subnets),
+			zap.String("updated_subnets", updatedSubnets.String()),
+		)
 		return true, nil
 	}
 	return false, nil