diff -r ae33d153f6cc -r b64b0cb845fe src/Pure/PIDE/protocol.scala
--- a/src/Pure/PIDE/protocol.scala	Tue Apr 08 10:24:42 2014 +0200
+++ b/src/Pure/PIDE/protocol.scala	Tue Apr 08 12:19:33 2014 +0200
@@ -307,8 +307,8 @@
   {
     def elem_positions(props: Properties.T, set: Set[Text.Range]): Set[Text.Range] =
       props match {
-        case Position.Reported(id, file_name, symbol_range)
-        if valid_id(id) && file_name == chunk.file_name =>
+        case Position.Reported(id, chunk_name, symbol_range)
+        if valid_id(id) && chunk_name == chunk.name =>
           chunk.incorporate(symbol_range) match {
             case Some(range) => set + range
             case _ => set