diff --git a/src/MissionManager/SurveyComplexItem.cc b/src/MissionManager/SurveyComplexItem.cc
index de282c58647b77aa354ea3133bde1cb019811c61..8ae260bf09b39c4bd5b59d84fd32b88f3b590ebd 100644
--- a/src/MissionManager/SurveyComplexItem.cc
+++ b/src/MissionManager/SurveyComplexItem.cc
@@ -1117,7 +1117,7 @@ void SurveyComplexItem::_rebuildTransectsPhase1Worker(bool refly)
 
     // Create list of separate polygons
     QList<QPolygonF> polygons;
-    polygons << polygon;
+    _PolygonDecomposeConvex(polygon, polygons);
 
     // iterate over polygons
     for (const auto& p : polygons) {
@@ -1125,6 +1125,11 @@ void SurveyComplexItem::_rebuildTransectsPhase1Worker(bool refly)
     }
 }
 
+void SurveyComplexItem::_PolygonDecomposeConvex(const QPolygonF& polygon, QList<QPolygonF>& polygons)
+{
+    polygons << polygon;
+}
+
 void SurveyComplexItem::_rebuildTranscetsFromPolygon(bool refly, const QPolygonF& polygon, const QGeoCoordinate& tangentOrigin)
 {
     // Generate transects
diff --git a/src/MissionManager/SurveyComplexItem.h b/src/MissionManager/SurveyComplexItem.h
index 85cf34df62f13fe178768e28d3bf939855669bd0..1086a2e7c21f4a47160963bdc52a56b36dcc8610 100644
--- a/src/MissionManager/SurveyComplexItem.h
+++ b/src/MissionManager/SurveyComplexItem.h
@@ -113,6 +113,7 @@ private:
     void _rebuildTransectsPhase1Worker(bool refly);
     /// Adds to the _transects array from one polygon
     void _rebuildTranscetsFromPolygon(bool refly, const QPolygonF& polygon, const QGeoCoordinate& tangentOrigin);
+    void _PolygonDecomposeConvex(const QPolygonF& polygon, QList<QPolygonF>& polygons);
 
     QMap<QString, FactMetaData*> _metaDataMap;