diff --git a/docs/models.yml b/docs/models.yml
index 2c701c039..f7fb71fd5 100644
--- a/docs/models.yml
+++ b/docs/models.yml
@@ -1347,6 +1347,7 @@ motion_state:
   recommendation_label: string
   css_class:
     type: string
+    default: lightblue
     enum:
     - grey
     - red