diff --git a/src/lib/components/chat/MessageInput.svelte b/src/lib/components/chat/MessageInput.svelte
index 2f5bbc490a..45b84c28a7 100644
--- a/src/lib/components/chat/MessageInput.svelte
+++ b/src/lib/components/chat/MessageInput.svelte
@@ -1024,7 +1024,9 @@
 							}}
 						>
 							<div
-								class="flex-1 flex flex-col relative w-full shadow-lg rounded-3xl border border-gray-50 dark:border-gray-850 hover:border-gray-100 focus-within:border-gray-100 hover:dark:border-gray-800 focus-within:dark:border-gray-800 transition px-1 bg-white/90 dark:bg-gray-400/5 dark:text-gray-100"
+								class="flex-1 flex flex-col relative w-full shadow-lg rounded-3xl border {$temporaryChatEnabled
+									? 'border-dashed'
+									: ''} border-gray-50 dark:border-gray-850 hover:border-gray-100 focus-within:border-gray-100 hover:dark:border-gray-800 focus-within:dark:border-gray-800 transition px-1 bg-white/90 dark:bg-gray-400/5 dark:text-gray-100"
 								dir={$settings?.chatDirection ?? 'auto'}
 							>
 								{#if atSelectedModel !== undefined}