diff --git a/ApplicationCode/ProjectDataModel/RimMainPlotCollection.cpp b/ApplicationCode/ProjectDataModel/RimMainPlotCollection.cpp
index dbf8ff3332..377a27bde3 100644
--- a/ApplicationCode/ProjectDataModel/RimMainPlotCollection.cpp
+++ b/ApplicationCode/ProjectDataModel/RimMainPlotCollection.cpp
@@ -193,6 +193,7 @@ void RimMainPlotCollection::deleteAllContainedObjects()
     m_summaryCrossPlotCollection()->deleteAllChildObjects();
     m_gridCrossPlotCollection->deleteAllChildObjects();
     m_flowPlotCollection()->closeDefaultPlotWindowAndDeletePlots();
+    m_saturationPressurePlotCollection()->deleteAllChildObjects();
 }
 
 //--------------------------------------------------------------------------------------------------