Index: /applications/editors/josm/plugins/surveyor/src/at/dallermassl/josm/plugin/surveyor/action/SetWaypointAction.java
===================================================================
--- /applications/editors/josm/plugins/surveyor/src/at/dallermassl/josm/plugin/surveyor/action/SetWaypointAction.java	(revision 4490)
+++ /applications/editors/josm/plugins/surveyor/src/at/dallermassl/josm/plugin/surveyor/action/SetWaypointAction.java	(revision 4491)
@@ -68,4 +68,5 @@
         String inputText = dialog.openDialog(SurveyorPlugin.getSurveyorFrame(), "Waypoint Description");
         if(inputText != null && inputText.length() > 0) {
+            inputText = inputText.replaceAll("<", "_"); // otherwise the gpx file is ruined
             markerText = markerText + " " + inputText;
         }