diff --git a/rtgui/editorpanel.cc b/rtgui/editorpanel.cc
index 21753bcf5..7f5869a95 100644
--- a/rtgui/editorpanel.cc
+++ b/rtgui/editorpanel.cc
@@ -1081,6 +1081,7 @@ void EditorPanel::open (Thumbnail* tmb, rtengine::InitialImage* isrc)
     }
 
     history->resetSnapShotNumber();
+    navigator->setInvalid(ipc->getFullWidth(),ipc->getFullHeight());
 }
 
 void EditorPanel::close ()
diff --git a/rtgui/navigator.h b/rtgui/navigator.h
index 647df7a34..e6ca33559 100644
--- a/rtgui/navigator.h
+++ b/rtgui/navigator.h
@@ -46,7 +46,6 @@ protected:
     Gtk::Label *lH, *lS, *lV;
     Gtk::Label *lLAB_A, *lLAB_B, *lLAB_L;
 
-    void setInvalid (int fullWidth = -1, int fullHeight = -1);
 
 public:
     PreviewWindow* previewWindow;
@@ -56,6 +55,7 @@ public:
     // pointermotionlistener interface
     //  void pointerMoved (bool validPos, int x, int y, int r, int g, int b);
     void pointerMoved (bool validPos, Glib::ustring profile, Glib::ustring profileW, int x, int y, int r, int g, int b);
+    void setInvalid (int fullWidth = -1, int fullHeight = -1);
 
     void getRGBText (int r, int g, int b, Glib::ustring &sR, Glib::ustring &sG, Glib::ustring &sB);
     void getHSVText (float h, float s, float v, Glib::ustring &sH, Glib::ustring &sS, Glib::ustring &sV);