diff --git a/ApplicationCode/ProjectDataModel/RimProject.cpp b/ApplicationCode/ProjectDataModel/RimProject.cpp
index c07c6d45fc..347e80e75d 100644
--- a/ApplicationCode/ProjectDataModel/RimProject.cpp
+++ b/ApplicationCode/ProjectDataModel/RimProject.cpp
@@ -124,6 +124,8 @@ void RimProject::close()
 
     wellPathImport = new RimWellPathImport();
 
+    commandObjects.deleteAllChildObjects();
+
     fileName = "";
 
     nextValidCaseId = 0;