--- a/src/utils/fileudi.h
+++ b/src/utils/fileudi.h
@@ -24,9 +24,8 @@
// indexer). Document Ids are built from a concatenation of the file
// path and the internal path (ie: email number inside
// folder/attachment number/etc.) As the size of Xapian terms is
-// limited, the path is truncated to a maximum length, and completed
-// by a hash of the remainder. So the unique id looks like:
-// /some/truncated/paHASHVALUE|ipath
+// limited, the Id path is truncated to a maximum length, and completed
+// by a hash of the remainder (including the ipath)
extern void make_udi(const string& fn, const string& ipath, string &udi);