diff --git a/packages/frontend/src/components/MkUrlWarningDialog.vue b/packages/frontend/src/components/MkUrlWarningDialog.vue
index 01ecba1817..8b18942719 100644
--- a/packages/frontend/src/components/MkUrlWarningDialog.vue
+++ b/packages/frontend/src/components/MkUrlWarningDialog.vue
@@ -64,7 +64,7 @@ function done(canceled: boolean, result?: Result): void { // eslint-disable-line
 async function ok() {
 	const result = true;
 	if (!prefer.s.trustedDomains.includes(domain.value) && trustThisDomain.value) {
-		prefer.r.trustedDomains.value = prefer.s.trustedDomains.concat(domain.value);
+		prefer.commit('trustedDomains', prefer.s.trustedDomains.concat(domain.value));
 	}
 	done(false, result);
 }
diff --git a/packages/frontend/src/utility/warning-external-website.ts b/packages/frontend/src/utility/warning-external-website.ts
index 33cf379b50..28c03c419d 100644
--- a/packages/frontend/src/utility/warning-external-website.ts
+++ b/packages/frontend/src/utility/warning-external-website.ts
@@ -36,8 +36,8 @@ export async function warningExternalWebsite(url: string) {
 		}
 	});
 
-	const isTrustedByUser = prefer.r.trustedDomains.value.includes(hostname);
-	const isDisabledByUser = !prefer.r.warnExternalUrl.value;
+	const isTrustedByUser = prefer.s.trustedDomains.includes(hostname);
+	const isDisabledByUser = !prefer.s.warnExternalUrl;
 
 	if (!isTrustedByInstance && !isTrustedByUser && !isDisabledByUser) {
 		const confirm = await new Promise<{ canceled: boolean }>(resolve => {