diff --git a/web/src/App.tsx b/web/src/App.tsx
index 8eb0a543..1a038f6c 100644
--- a/web/src/App.tsx
+++ b/web/src/App.tsx
@@ -114,7 +114,7 @@ function AppInner() {
     }, [goBack, pathname])
     const queryClient = useQueryClient()
     const sessionMatch = matchRoute({ to: '/sessions/$sessionId' })
-    const selectedSessionId = sessionMatch ? sessionMatch.sessionId : null
+    const selectedSessionId = sessionMatch && sessionMatch.sessionId !== 'new' ? sessionMatch.sessionId : null
     const { isSyncing, startSync, endSync } = useSyncingState()
     const [sseDisconnected, setSseDisconnected] = useState(false)
     const syncTokenRef = useRef(0)
diff --git a/web/src/router.tsx b/web/src/router.tsx
index 018f7f83..0dd3ad15 100644
--- a/web/src/router.tsx
+++ b/web/src/router.tsx
@@ -108,7 +108,7 @@ function SessionsPage() {
 
     const projectCount = new Set(sessions.map(s => s.metadata?.worktree?.basePath ?? s.metadata?.path ?? 'Other')).size
     const sessionMatch = matchRoute({ to: '/sessions/$sessionId', fuzzy: true })
-    const selectedSessionId = sessionMatch ? sessionMatch.sessionId : null
+    const selectedSessionId = sessionMatch && sessionMatch.sessionId !== 'new' ? sessionMatch.sessionId : null
     const isSessionsIndex = pathname === '/sessions' || pathname === '/sessions/'
 
     return (