diff --git a/profile-widget/profilewidget2.cpp b/profile-widget/profilewidget2.cpp
index 89d1b2840..0d379d797 100644
--- a/profile-widget/profilewidget2.cpp
+++ b/profile-widget/profilewidget2.cpp
@@ -397,6 +397,8 @@ void ProfileWidget2::clear()
 	handles.clear();
 	gases.clear();
 	empty = true;
+	d = nullptr;
+	dc = 0;
 }
 
 void ProfileWidget2::setProfileState(const dive *dIn, int dcIn)