diff --git a/apps/web/src/routes/_authenticated/$guildSlug/$channelId.tsx b/apps/web/src/routes/_authenticated/$guildSlug/$channelId.tsx
index 6eca626..db9634f 100644
--- a/apps/web/src/routes/_authenticated/$guildSlug/$channelId.tsx
+++ b/apps/web/src/routes/_authenticated/$guildSlug/$channelId.tsx
@@ -40,7 +40,14 @@ function ChannelView() {
   const currentUserId = session?.user.id
 
   useEffect(() => {
-    localStorage.setItem(`last-channel:${guildSlug}`, channelId)
+    if (!guildSlug || !channelId) return
+    try {
+      if (typeof window !== "undefined") {
+        localStorage.setItem(`last-channel:${guildSlug}`, channelId)
+      }
+    } catch {
+      // localStorage may be unavailable in restricted environments
+    }
   }, [guildSlug, channelId])
 
   useEffect(() => {
diff --git a/apps/web/src/routes/_authenticated/$guildSlug/index.tsx b/apps/web/src/routes/_authenticated/$guildSlug/index.tsx
index 58ffb0e..c3d1c1e 100644
--- a/apps/web/src/routes/_authenticated/$guildSlug/index.tsx
+++ b/apps/web/src/routes/_authenticated/$guildSlug/index.tsx
@@ -10,7 +10,14 @@ function GuildHome() {
   const navigate = useNavigate()
 
   useEffect(() => {
-    const lastChannelId = localStorage.getItem(`last-channel:${guildSlug}`)
+    let lastChannelId: string | null = null
+    try {
+      if (typeof window !== "undefined") {
+        lastChannelId = localStorage.getItem(`last-channel:${guildSlug}`)
+      }
+    } catch {
+      // localStorage may be unavailable in restricted environments
+    }
     if (lastChannelId) {
       void navigate({
         to: "/$guildSlug/$channelId",