diff --git a/apps/web/src/components/chat/MessagesTimeline.tsx b/apps/web/src/components/chat/MessagesTimeline.tsx
index fa718bc1de9c72a54946da1211fac0a6d27d33da..4b41e98e0627a44a018e16ba39040bb25861fb64 100644
--- a/apps/web/src/components/chat/MessagesTimeline.tsx
+++ b/apps/web/src/components/chat/MessagesTimeline.tsx
@@ -3321,10 +3321,10 @@ const PlainWorkEntryRow = memo(function PlainWorkEntryRow(props: {
             )}
             aria-hidden
           >
-            <ChevronDownIcon
+            <ChevronRightIcon
               className={cn(
                 "size-3 shrink-0 text-icon-muted opacity-70 transition-transform duration-200",
-                expanded && "rotate-180",
+                expanded && "rotate-90",
               )}
             />
           </span>