diff --git a/src/stores/mailUiStore.ts b/src/stores/mailUiStore.ts
index 1ac798a..f0be7bc 100644
--- a/src/stores/mailUiStore.ts
+++ b/src/stores/mailUiStore.ts
@@ -249,7 +249,7 @@ export const useMailUiStore = defineStore('mailUiStore', () => {
   async function completeMessageRead(identifier: EntityIdentifier) {
     try {
       if (selectedMessage.value && selectedMessage.value.identifier === identifier && selectedMessage.value.properties.isRead === false) {
-        await flagMessages([selectedMessage.value.identifier], { read: true }, { notify: false })
+        await flagMessages([selectedMessage.value.identifier], { seen: true }, { notify: false })
       }
     } catch (error) {
       console.error('[Mail][UI] Failed to auto-mark message as read:', error)