diff --git a/rtgui/toolpanelcoord.cc b/rtgui/toolpanelcoord.cc
index e6c2e8251..a9f78273e 100644
--- a/rtgui/toolpanelcoord.cc
+++ b/rtgui/toolpanelcoord.cc
@@ -28,7 +28,7 @@
 
 using namespace rtengine::procparams;
 
-ToolPanelCoordinator::ToolPanelCoordinator () : ipc(NULL)
+ToolPanelCoordinator::ToolPanelCoordinator () : ipc(nullptr), editDataProvider(nullptr)
 {
 
     exposurePanel   = Gtk::manage (new ToolVBox ());