diff --git a/src/invidious/routes/before_all.cr b/src/invidious/routes/before_all.cr
index 0c5410ce..fcfc3345 100644
--- a/src/invidious/routes/before_all.cr
+++ b/src/invidious/routes/before_all.cr
@@ -84,8 +84,8 @@ module Invidious::Routes::BeforeAll
     end
 
     dark_mode = convert_theme(env.params.query["dark_mode"]?) || preferences.dark_mode.to_s
-    thin_mode = env.params.query["thin_mode"]? || preferences.thin_mode.to_s
-    thin_mode = thin_mode == "true"
+    thin_mode = env.params.query["thin_mode"]?
+    thin_mode = (thin_mode == "true") || preferences.thin_mode
     locale = env.params.query["hl"]? || preferences.locale
 
     preferences.dark_mode = dark_mode
diff --git a/src/invidious/routes/channels.cr b/src/invidious/routes/channels.cr
index 0efa8ced..ba119af2 100644
--- a/src/invidious/routes/channels.cr
+++ b/src/invidious/routes/channels.cr
@@ -232,8 +232,10 @@ module Invidious::Routes::Channels
       env.redirect "/post/#{URI.encode_www_form(lb)}?ucid=#{URI.encode_www_form(ucid)}"
     end
 
-    thin_mode = env.params.query["thin_mode"]? || env.get("preferences").as(Preferences).thin_mode
-    thin_mode = thin_mode == "true"
+    preferences = env.get("preferences").as(Preferences)
+
+    thin_mode = env.params.query["thin_mode"]?
+    thin_mode = (thin_mode == "true") || preferences.thin_mode
 
     continuation = env.params.query["continuation"]?