diff --git a/hosts/vps/runtime/control-plane/docker-compose.override.yml b/hosts/vps/runtime/control-plane/docker-compose.override.yml
index df6f8a1..c48e94c 100644
--- a/hosts/vps/runtime/control-plane/docker-compose.override.yml
+++ b/hosts/vps/runtime/control-plane/docker-compose.override.yml
@@ -32,8 +32,8 @@ services:
     # event-driven liveness (grep SHADOW_LIVENESS_MISMATCH), but NEVER switches
     # source. Unset → disabled, observer unchanged (fail-open on any prom error).
     # Uncomment to enable the ≥7-day parallel-run:
-    # environment:
-    #   - PROM_SHADOW_URL=http://100.95.58.48:9090
+    environment:
+    - PROM_SHADOW_URL=http://100.95.58.48:9090
 
   supervisor:
     mem_limit: 400m