diff --git a/ChangeLog b/ChangeLog
index b1d51c7b3..7791dd55c 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,15 @@
+2007-11-06  Nick Treleaven  <nick(dot)treleaven(at)btinternet(dot)com>
+
+ * plugins/svndiff.c:
+   Fix sign comparison warning.
+
+
+2007-11-05  Nick Treleaven  <nick(dot)treleaven(at)btinternet(dot)com>
+
+ * HACKING:
+   Update 'Adding a filetype' section for new highlighting.c code.
+
+
 2007-11-05  Enrico Tröger  <enrico(dot)troeger(at)uvena(dot)de>
 
  * src/dialogs.c, src/document.c, src/utils.c:
diff --git a/plugins/svndiff.c b/plugins/svndiff.c
index 4a0abb337..f85c711a2 100644
--- a/plugins/svndiff.c
+++ b/plugins/svndiff.c
@@ -44,9 +44,10 @@ PLUGIN_INFO(_("SVNdiff"), _("Plugin to create a patch of a file against svn"), V
 static int find_by_filename(const gchar* filename)
 {
 	guint i;
+
 	for (i = 0; i < doc_array->len; i++)
 	{
-		if ( DOC_IDX_VALID(i) && doc_list[i].file_name &&
+		if (doc_list[i].is_valid && doc_list[i].file_name &&
 		     strcmp(doc_list[i].file_name, filename) == 0)
 			return i;
 	}