diff --git a/packages/client/src/components/MkDialog.vue b/packages/client/src/components/MkDialog.vue
index d0d42ac037..20f0b9a74d 100644
--- a/packages/client/src/components/MkDialog.vue
+++ b/packages/client/src/components/MkDialog.vue
@@ -289,7 +289,7 @@ function onInputKeydown(evt: KeyboardEvent) {
 function formatDateToYYYYMMDD(date) {
 	const year = date.getFullYear();
 	const month = ("0" + (date.getMonth() + 1)).slice(-2);
-	const day = ("0" + date.getDate()).slice(-2);
+	const day = ("0" + (date.getDate() + 1)).slice(-2);
 	return `${year}-${month}-${day}`;
 }