diff --git a/apps/web/src/components/ChatView.tsx b/apps/web/src/components/ChatView.tsx
index bb4fac354cfce6efc728f9174b674ada10666d0c..632edc048e8b51067fbee98458efb8ae55a2bf14 100644
--- a/apps/web/src/components/ChatView.tsx
+++ b/apps/web/src/components/ChatView.tsx
@@ -623,6 +623,7 @@ export default function ChatView({ threadId }: ChatViewProps) {
     void navigate({
       to: "/$threadId",
       params: { threadId },
+      replace: true,
       search: (previous) => {
         const rest = stripDiffSearchParams(previous);
         return diffOpen ? rest : { ...rest, diff: "1" };