diff --git a/src/MissionManager/StructureScanComplexItem.cc b/src/MissionManager/StructureScanComplexItem.cc
index 4544f2b7364e88655b174a8ae25b2fed71a99f81..8eae2d8ff6b988b0a9e198c0188f24b99a43049f 100644
--- a/src/MissionManager/StructureScanComplexItem.cc
+++ b/src/MissionManager/StructureScanComplexItem.cc
@@ -293,7 +293,7 @@ void StructureScanComplexItem::appendMissionItems(QList<MissionItem*>& items, QO
 {
     int     seqNum =        _sequenceNumber;
     bool    startFromTop =  _startFromTopFact.rawValue().toBool();
-    double  startAltitude = _scanBottomAltFact.rawValue().toDouble() + (startFromTop ? _structureHeightFact.rawValue().toDouble() : 0);
+    double  startAltitude = (startFromTop ? _structureHeightFact.rawValue().toDouble() : _scanBottomAltFact.rawValue().toDouble());
 
     MissionItem* item = nullptr;