diff --git a/Koha/REST/V1/Preservation/Processings.pm b/Koha/REST/V1/Preservation/Processings.pm
index e85ac7ee69..d3b3b0a9bc 100644
--- a/Koha/REST/V1/Preservation/Processings.pm
+++ b/Koha/REST/V1/Preservation/Processings.pm
@@ -154,7 +154,6 @@ sub update {
                 $processing->set_from_api($body)->store;
                 $processing->attributes($attributes);
 
-                $c->res->headers->location( $c->req->url->to_string . '/' . $processing->processing_id );
                 return $c->render(
                     status  => 200,
                     openapi => $c->objects->to_api($processing),
diff --git a/Koha/REST/V1/Preservation/Trains.pm b/Koha/REST/V1/Preservation/Trains.pm
index 4c5107b202..a008ddb039 100644
--- a/Koha/REST/V1/Preservation/Trains.pm
+++ b/Koha/REST/V1/Preservation/Trains.pm
@@ -151,7 +151,6 @@ sub update {
 
                 $train->set_from_api($body)->store;
 
-                $c->res->headers->location( $c->req->url->to_string . '/' . $train->train_id );
                 return $c->render(
                     status  => 200,
                     openapi => $c->objects->to_api($train),