diff --git a/site-modules/profile/templates/swh/deploy/loader_opam/opam-manage-shared-state.sh.erb b/site-modules/profile/templates/swh/deploy/loader_opam/opam-manage-shared-state.sh.erb
index 96ac262e..8340a4de 100644
--- a/site-modules/profile/templates/swh/deploy/loader_opam/opam-manage-shared-state.sh.erb
+++ b/site-modules/profile/templates/swh/deploy/loader_opam/opam-manage-shared-state.sh.erb
@@ -1,21 +1,22 @@
 #!/usr/bin/env bash
 
 # Managed by puppet class profile::swh::deploy::worker::loader_opam
 # Changes will be overwritten
 
 CMD=/usr/bin/opam
 ROOT_DIR=<%= @opam_root %>
+DEFAULT_INSTANCE="opam.ocaml.org"
 INSTANCE=$1
 INSTANCE_URL=$2
 
-if [ $INSTANCE = "opam" ]; then
+if [ $INSTANCE = $DEFAULT_INSTANCE ]; then
   # Opam instance is considered the main instance so we must initialize the repository
   # if not present, otherwise we update it
   ( $CMD repo --all --root $ROOT_DIR | grep $INSTANCE_URL && $CMD update --root $ROOT_DIR ) \
     || $CMD init --reinit --bare --no-setup --root $ROOT_DIR $INTSANCE $INSTANCE_URL
 else
   # Other instances, if present should be updated. If not present, they should be added
   # to the main root_dir as extra instances
   ( $CMD repo --all --root $ROOT_DIR | grep $INSTANCE_URL && $CMD update --root $ROOT_DIR ) \
     || $CMD repository add --root $ROOT_DIR $INSTANCE $INSTANCE_URL
 fi