diff --git a/src/lib/Hydra/Schema/BuildInputs.pm b/src/lib/Hydra/Schema/BuildInputs.pm
index a7668fde..67844582 100644
--- a/src/lib/Hydra/Schema/BuildInputs.pm
+++ b/src/lib/Hydra/Schema/BuildInputs.pm
@@ -35,6 +35,9 @@ __PACKAGE__->set_primary_key("id");
 __PACKAGE__->belongs_to("build", "Hydra::Schema::Builds", { id => "build" });
 __PACKAGE__->belongs_to("dependency", "Hydra::Schema::Builds", { id => "dependency" });
 
+if ($ENV{"HYDRA_DBI"} =~ m/^dbi:Pg/) {
+  __PACKAGE__->sequence('builds_id_seq');
+}
 
 # Created by DBIx::Class::Schema::Loader v0.04005 @ 2009-03-13 13:33:20
 # DO NOT MODIFY THIS OR ANYTHING ABOVE! md5sum:uxfS8+GnU06sbx6nvWzTSQ
diff --git a/src/lib/Hydra/Schema/Builds.pm b/src/lib/Hydra/Schema/Builds.pm
index 510334a9..ff8f4a5b 100644
--- a/src/lib/Hydra/Schema/Builds.pm
+++ b/src/lib/Hydra/Schema/Builds.pm
@@ -102,6 +102,9 @@ __PACKAGE__->belongs_to(
   { id => "id" },
 );
 
+if ($ENV{"HYDRA_DBI"} =~ m/^dbi:Pg/) {
+  __PACKAGE__->sequence('builds_id_seq');
+}
 
 sub makeSource {
     my ($name, $query) = @_;