diff --git a/packages/builder/src/stores/builder/screenComponent.ts b/packages/builder/src/stores/builder/screenComponent.ts
index 3284e9a339..47ac11a2c4 100644
--- a/packages/builder/src/stores/builder/screenComponent.ts
+++ b/packages/builder/src/stores/builder/screenComponent.ts
@@ -203,10 +203,9 @@ function getMissingAncestors(screen: Screen) {
         return name.endsWith("s") ? `${name}'` : `${name}s`
       }
 
-      result[component._id!] = missingAncestors.map((ancestor: any) => {
+      result[component._id!] = missingAncestors.map(ancestor => {
         const ancestorDefinition: any = getManifestDefinition(ancestor)
         return {
-          key: ancestor.key,
           message: `${pluralise(definition.name)} need to be inside a
 <mark>${ancestorDefinition.name}</mark>`,
           errorType: "ancestor-setting",
diff --git a/packages/types/src/ui/components/errors.ts b/packages/types/src/ui/components/errors.ts
index ce86e2f517..9725ed8a33 100644
--- a/packages/types/src/ui/components/errors.ts
+++ b/packages/types/src/ui/components/errors.ts
@@ -1,10 +1,10 @@
 interface BaseUIComponentError {
-  key: string
   message: string
 }
 
 interface UISettingComponentError extends BaseUIComponentError {
   errorType: "setting"
+  key: string
 }
 
 interface UIAncestorComponentError extends BaseUIComponentError {