diff --git a/dashboards/cubeops.yaml b/dashboards/cube-ops.yaml
similarity index 57%
rename from dashboards/cubeops.yaml
rename to dashboards/cube-ops.yaml
index 4fc4a44..eac4e50 100644
--- a/dashboards/cubeops.yaml
+++ b/dashboards/cube-ops.yaml
@@ -2,4 +2,4 @@ mode: yaml
 title: CubeOps
 icon: mdi:alarm-panel
 show_in_sidebar: true
-filename: dashboards/views/cubeops-dashboard.yaml
+filename: dashboards/views/cube-ops-dashboard.yaml
diff --git a/dashboards/dashboards.yaml b/dashboards/dashboards.yaml
index 16ba756..2d175c9 100644
--- a/dashboards/dashboards.yaml
+++ b/dashboards/dashboards.yaml
@@ -1,4 +1,8 @@
 voice-alarms: !include voice-alarms.yaml
 family-hub: !include family-hub.yaml
 at-a-glance: !include at-a-glance.yaml
-cubeops: !include cubeops.yaml
\ No newline at end of file
+# Each key is the dashboard's url_path, and HA requires it to contain a hyphen
+# (see homeassistant/components/lovelace: url_path validation). A hyphen-less
+# key fails validation for the whole `lovelace:` block, not just its own entry,
+# which takes every dashboard here down with it.
+cube-ops: !include cube-ops.yaml
\ No newline at end of file
diff --git a/dashboards/views/cubeops-dashboard.yaml b/dashboards/views/cube-ops-dashboard.yaml
similarity index 88%
rename from dashboards/views/cubeops-dashboard.yaml
rename to dashboards/views/cube-ops-dashboard.yaml
index 68d3c36..967a40a 100644
--- a/dashboards/views/cubeops-dashboard.yaml
+++ b/dashboards/views/cube-ops-dashboard.yaml
@@ -1,10 +1,12 @@
 # CubeOps — Cubecraft Production workboard
 #
-# Registered as the `cubeops` dashboard in dashboards/dashboards.yaml (mode:
+# Registered as the `cube-ops` dashboard in dashboards/dashboards.yaml (mode:
 # yaml), so this file is the source of truth. Do not edit it through HA's raw
 # configuration editor — that writes to storage and cannot come back to git.
 #
-# Kiosk URL: https://home.vault983.com/cubeops
+# Kiosk URL: https://home.vault983.com/cube-ops
+# (Renamed from /cubeops — HA rejects a url_path with no hyphen. Any wall
+# display still pointed at the old URL needs updating.)
 #
 # The card polls every 30 seconds, so a display left open stays current and
 # picks back up when a kiosk rotation returns to it.
diff --git a/themes/cubecraft.yaml b/themes/cubecraft.yaml
index 02e3508..7da15b6 100644
--- a/themes/cubecraft.yaml
+++ b/themes/cubecraft.yaml
@@ -19,7 +19,7 @@
 # taking the whole themes include down.)
 #
 # Hiding the sidebar as well needs the kiosk-mode frontend plugin (HACS), which
-# is not currently installed — see dashboards/views/cubeops-dashboard.yaml.
+# is not currently installed — see dashboards/views/cube-ops-dashboard.yaml.
 
 cubecraft:
   # ─────────────────────────────────────────────────────────────────────────