diff --git a/show_fingerprints.pl b/show_fingerprints.pl
index ce42607dbd1d9e9b617cd16246b53d7913fe36ec..8648d6dd83969c5c3e014c37b5a56f09b2625fe5 100755
--- a/show_fingerprints.pl
+++ b/show_fingerprints.pl
@@ -33,3 +33,8 @@ foreach my $file (@files)
   }
 }
 
+=head1 TODO
+
+optionally display fingerprints using other hashing algorithms
+
+=cut