diff --git a/src/invidious/helpers/webvtt.cr b/src/invidious/helpers/webvtt.cr
index 52138854..aace6bb8 100644
--- a/src/invidious/helpers/webvtt.cr
+++ b/src/invidious/helpers/webvtt.cr
@@ -34,7 +34,7 @@ module WebVTT
 
       if setting_fields
         setting_fields.each do |name, value|
-          @io << "#{name}: #{value}\n"
+          @io << name << ": " << value << '\n'
         end
       end