diff --git a/scripts/_common.sh b/scripts/_common.sh
index 64c866d..dff43e5 100644
--- a/scripts/_common.sh
+++ b/scripts/_common.sh
@@ -56,7 +56,10 @@ fabmanager_build_ui() {
 fabmanager_seed_db() {
     pushd "$install_dir"
         ynh_replace_string --match_string="DateTime.current" --replace_string="DateTime.current - 1.days" --target_file="$install_dir/db/seeds.rb"
+        # Need superuser for the extensions configuration…
+        ynh_psql_execute_as_root --database="$db_name" --sql="ALTER USER $db_user WITH SUPERUSER;"
         env_ruby bash -c "set -a; source '$install_dir/.env'; set +a ; RAILS_ENV=production ADMIN_EMAIL='$admin_mail' ADMIN_PASSWORD='$password' bin/bundle exec rails db:schema:load"
+        ynh_psql_execute_as_root --database="$db_name" --sql="ALTER USER $db_user WITH NOSUPERUSER;"
         env_ruby bash -c "set -a; source '$install_dir/.env'; set +a ; RAILS_ENV=production ADMIN_EMAIL='$admin_mail' ADMIN_PASSWORD='$password' bin/bundle exec rails db:seed"
     popd
 }
diff --git a/scripts/install b/scripts/install
index 18acc77..fe3ffbd 100755
--- a/scripts/install
+++ b/scripts/install
@@ -25,17 +25,6 @@ ynh_exec_warn_less ynh_install_nodejs --nodejs_version="$nodejs_version"
 ynh_script_progression --message="Installing Ruby..." --weight=4
 ynh_exec_warn_less ynh_install_ruby --ruby_version="$ruby_version"
 
-#=================================================
-# CREATE A POSTGRESQL DATABASE
-#=================================================
-ynh_script_progression --message="Configuring $app's PostgreSQL database..." --weight=1
-
-ynh_psql_execute_as_root --database="$db_name" --sql="ALTER USER $db_user WITH SUPERUSER;"
-ynh_psql_execute_as_root --database="$db_name" --sql="CREATE EXTENSION IF NOT EXISTS unaccent;"
-ynh_psql_execute_as_root --database="$db_name" --sql="CREATE EXTENSION IF NOT EXISTS pg_trgm;"
-ynh_psql_execute_as_root --database="$db_name" --sql="CREATE EXTENSION IF NOT EXISTS fuzzystrmatch;"
-ynh_psql_execute_as_root --database="$db_name" --sql="ALTER USER $db_user WITH NOSUPERUSER;"
-
 #=================================================
 # DOWNLOAD, CHECK AND UNPACK SOURCE
 #=================================================