diff --git a/site-modules/profile/templates/swh/deploy/scrubber/swh-scrubber-checker-postgres@.service.erb b/site-modules/profile/templates/swh/deploy/scrubber/swh-scrubber-checker-postgres@.service.erb
index 85810884..d70e720e 100644
--- a/site-modules/profile/templates/swh/deploy/scrubber/swh-scrubber-checker-postgres@.service.erb
+++ b/site-modules/profile/templates/swh/deploy/scrubber/swh-scrubber-checker-postgres@.service.erb
@@ -1,26 +1,26 @@
 # Scrubber checker postgres template unit file
 # Managed by puppet class profile::swh::deploy::scrubber::checker::postgres
 # Changes will be overwritten
 
 [Unit]
 Description=Software Heritage Scrubber Checker Postgres %i
 After=network.target
 
 [Service]
 <%- if !@sentry_dsn.nil? and !@sentry_dsn.empty? -%>
 Environment=SWH_SENTRY_DSN=<%= @sentry_dsn %>
 <%- end -%>
 <%- if !@sentry_environment.nil? and !@sentry_environment.empty? -%>
 Environment=SWH_SENTRY_ENVIRONMENT=<%= @sentry_environment %>
 <%- end -%>
 <%- if !@sentry_swh_package.nil? and !@sentry_swh_package.empty? -%>
 Environment=SWH_MAIN_PACKAGE=<%= @sentry_swh_package %>
 <%- end -%>
 Environment=SWH_SCRUBBER_CLI_EXTRA_ARGS="--help"
 User=<%= @user %>
 Group=<%= @group %>
 Type=simple
-ExecStart=/usr/bin/swh scrubber --config-file <%= @config_file %> check storage ${SWH_SCRUBBER_CLI_EXTRA_ARGS}
+ExecStart=/usr/bin/swh scrubber --config-file <%= @config_file %> check storage $SWH_SCRUBBER_CLI_EXTRA_ARGS
 
 [Install]
 WantedBy=multi-user.target