X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fcomponents%2Fgrafite_parser%2FgrafiteParser.ml;h=24cade68afae5be4544d3ade1df050e5cff2bab2;hb=e28ddccd4096c80b2090ca78af00e2590f629b71;hp=91086b46d71027bd15b550132fb0fad379c2a52f;hpb=50997cb3042073d58c2a16885ef0c82217367e63;p=helm.git

diff --git a/matita/components/grafite_parser/grafiteParser.ml b/matita/components/grafite_parser/grafiteParser.ml
index 91086b46d..24cade68a 100644
--- a/matita/components/grafite_parser/grafiteParser.ml
+++ b/matita/components/grafite_parser/grafiteParser.ml
@@ -500,7 +500,7 @@ EXTEND
   index: [[ b = OPT SYMBOL "-" -> match b with None -> true | _ -> false ]];
 
   source: [[
-     src = OPT IDENT "implied" ->
+     src = OPT [ IDENT "implied" ] ->
         match src with None -> `Provided | _ -> `Implied
   ]];