diff --git a/configuration.yaml b/configuration.yaml
index 2c9fef98..c1aa4909 100644
--- a/configuration.yaml
+++ b/configuration.yaml
@@ -21,7 +21,6 @@ shell_command:
   # Spoolman location of each slot. Script reads its Grafana token from /config/.colour-sync.token
   grafana_colour_sync: >-
     python3 /config/colour-sync.py --once --colours
-    '{%- set ns = namespace(items=[]) -%}
     {%- for s in states.sensor | selectattr('entity_id', 'match', '^sensor[.]spoolman_spool_[0-9]+$') -%}
     {%- set loc = (s.attributes.location | default('')) | trim -%}
     {%- if loc.lower().startswith('cfs lite ') -%}