diff --git a/crates/api-grub/src/export.rs b/crates/api-grub/src/export.rs
index df501ad..d348830 100644
--- a/crates/api-grub/src/export.rs
+++ b/crates/api-grub/src/export.rs
@@ -117,7 +117,7 @@ impl Exporter {
     pub async fn export_extended_metrics(metrics: PrometheusMetricsExtended) -> Result<usize> {
         // let url = env::var("EXPORTER_URL")?;
         let url = env::var("STATUS_SYSTEM_URL").or_else(|err| {
-            trace!("cannot fetch $STATUS_SYSTEM_URL var due to {}", err);
+            trace!("cannot fetch $STATUS_SYSTEM_URL var due to {}. working only with Prometheus exporter link", err);
             env::var("EXPORTER_URL")
         })?;