diff --git a/src/blackcore/airspacemonitor.cpp b/src/blackcore/airspacemonitor.cpp
index 9f4368876..4a7ad2504 100644
--- a/src/blackcore/airspacemonitor.cpp
+++ b/src/blackcore/airspacemonitor.cpp
@@ -306,7 +306,7 @@ namespace BlackCore
         const CAtcStationList stations(this->getAtcStationsOnline());
         for (const CAtcStation &station : stations)
         {
-            m_network->sendAtisQuery(station.getCallsign());
+            m_network->sendAtisQuery(station.getCallsign()); // for each online station
         }
     }