Index: trunk/src/org/openstreetmap/josm/tools/AlphanumComparator.java
===================================================================
--- trunk/src/org/openstreetmap/josm/tools/AlphanumComparator.java	(revision 18977)
+++ trunk/src/org/openstreetmap/josm/tools/AlphanumComparator.java	(revision 18978)
@@ -68,5 +68,5 @@
         // After the symbols, we have 0-9, and then aA-zZ.
         // The character order
-        final String order = " \r\t\n\f\u000b_,;:!?/.`^~'\"()[]{}@$*\\&#%+<=>|0123456789aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ";
+        final String order = " \r\t\n\f\u000b-_,;:!?/.`^~'\"()[]{}@$*\\&#%+<=>|0123456789aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ";
         for (int i = 0; i < order.length(); i++) {
             char c = order.charAt(i);