diff --git a/components/prompt-form.tsx b/components/prompt-form.tsx
index 9cb778a..53a1ee0 100644
--- a/components/prompt-form.tsx
+++ b/components/prompt-form.tsx
@@ -62,7 +62,7 @@ export function PromptForm({
               <Button
                 type="submit"
                 size="icon"
-                disabled={isLoading || input === ''}
+                disabled={isLoading || !input.trim()}
               >
                 <IconArrowElbow />
                 <span className="sr-only">Send message</span>