diff --git a/src/ATC/atc_mgr.cxx b/src/ATC/atc_mgr.cxx
index 8ccdb91e7..927d1a254 100644
--- a/src/ATC/atc_mgr.cxx
+++ b/src/ATC/atc_mgr.cxx
@@ -403,7 +403,7 @@ void FGATCManager::update ( double time ) {
    }
 
    // update the active ATC stations
-   for (AtcVecIterator atc = activeStations.begin(); atc != activeStations.end(); atc++) {
+   for (AtcVecIterator atc = activeStations.begin(); atc != activeStations.end(); ++atc) {
        (*atc)->update(time);
    }
 }