diff --git a/modules/Bio/EnsEMBL/DBSQL/BiotypeAdaptor.pm b/modules/Bio/EnsEMBL/DBSQL/BiotypeAdaptor.pm
index 3de533e72028a0eb54369ea4e03a67e64ec42d16..83fbb4960e6e24d667432087d2c89825c04d0485 100644
--- a/modules/Bio/EnsEMBL/DBSQL/BiotypeAdaptor.pm
+++ b/modules/Bio/EnsEMBL/DBSQL/BiotypeAdaptor.pm
@@ -157,6 +157,7 @@ sub fetch_by_name_object_type {
 
   # If request biotype does not exist in the table
   # create a new biotype object containing name and object_type only
+  # this is required by genebuild in pipelines
   if (!defined $biotype) {
     $biotype = Bio::EnsEMBL::Biotype->new(
           -NAME          => $name,