diff --git a/frontend/src/lib/components/workspaceSettings/RulesetEditor.svelte b/frontend/src/lib/components/workspaceSettings/RulesetEditor.svelte
index c7f2f4e6c5..789793fe20 100644
--- a/frontend/src/lib/components/workspaceSettings/RulesetEditor.svelte
+++ b/frontend/src/lib/components/workspaceSettings/RulesetEditor.svelte
@@ -23,7 +23,7 @@
 		rule?: ProtectionRuleset
 		existingNames?: string[]
 		onUpdate?: () => void
-		onClose?: () => void
+		onClose: () => void
 	}
 
 	let { rule, existingNames = [], onUpdate, onClose }: Props = $props()