Index: trunk/src/org/openstreetmap/josm/gui/history/CoordinateInfoViewer.java
===================================================================
--- trunk/src/org/openstreetmap/josm/gui/history/CoordinateInfoViewer.java	(revision 19420)
+++ trunk/src/org/openstreetmap/josm/gui/history/CoordinateInfoViewer.java	(revision 19421)
@@ -450,5 +450,5 @@
         public void actionPerformed(ActionEvent e) {
             OsmPrimitive primitive = getPrimitiveFromDataSet(PointInTimeType.REFERENCE_POINT_IN_TIME);
-            if (!(primitive instanceof Node)) {
+            if (!(primitive instanceof Node) || ((Node)primitive).getEastNorth() == null) {
                 return;
             }